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Everyone who works in a particular field has opinions on their
work and the materials they use. This page comprises OUR opinions. They
derive from years of wearing, using and working with leather and bike
clothes generally. They are not gospel and if you disagree you are welcome
to let us know. You can never tell, if we think you have a valid point
we may well change the page.
We may even give you credit : -)
Leather is one of the oldest raw materials known to man. The world
as we know is built on a foundation of wood and leather. You want a
sustainable material? There is no need for dinosaur juice in
leather manufacture.
Leather is defined as the tanned skins or hides of animals. Almost
any kind of skin can be used as leather, from cattle, through birds
(ostrich for example) to fish. Some of these have very specialized uses,
many now obsolete (shagreen, a tanned shark skin, was used for sword
hilts due to it's high grip whilst traditionally carriage driving gloves
were made from dog skin, though deer skin is used now). For the most
part our interest is in cattle leather for use in clothing.
Leather for motorcycle clothing.
You are buying protective clothing so don't sacrifice safety and function
to form and fashion. It could be a blood sacrifice.
Leather is used for motorcycle clothing because of it's abrasion resistance,
comfort and appearance. "Moto" grade leather for bike use wants to be
at least 1.5 - 2mm thick to give a reasonable degree of protection.
Thinner than this and it will not protect your valuable hide if you
slide down the road (the exception here is kangaroo hide which because
of its structure can provide equivalent levels of protection at 1½ mm
thickness). Leather up to 3mm thick is flexible enough to use for leathers
but over and about this thickness you start noticing the sheer weight
of the stuff. A compromise is often used where especially vulnerable
areas - hips, arse, shoulders elbows and knees - are "double leathered"
to provide extra protection without incurring the weight penalty of
a thicker suit / jacket. Additional protection in these areas is also
provided by body armour and Kevlar™ backing. Thinned down leather is
also used for lettering and artwork but this is not thick enough to
provide significant protection. Full grain leather is the best quality,
but is not colour fast and is expensive. The best "moto" grade
leather is "top grain" and "corrected grain" which
are re-finished leathers. These are lower quality than full grain leather
but more practicel.
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Stitching and construction.
We believe that leathers should be at least double stitched before
top stitching. If a seam is simply top stitched it will fail long before
the leather is compromised and you will make personal and painful contact
with the tarmac. It is often quite hard (OK, impossible) to tell if
the seam is made in this way from the outside (just because you can
see two rows of stitching down the outside of a seam does not PROVE
that the seam is in fact double stitched) so access to the inside of
the suit is important. Whilst we are checking things, we would also
recommend that you check that double leathering really IS double, and
that the leather of the suit has not been cut away under the overlays.
Honest, we have seen it done.
We have only ever seen one example of apparent double leathering being
in fact single, but one is enough if it happens to be yours.
We recommend that suits should have detachable linings for this reason.
In addition a detachable lining is washable and from our point of view
they make repairs and alterations much easier, quicker and therefore
cheaper. Where ever possible we will re-stitch a garment using double
stitching when it comes in for repair regardless of how it was originally
made. It helps to protect YOUR skin and OUR reputation.
We also come across failed seams that have torn because the stitches
are too close together. This is another factor to watch out for when
buying. Take a look at the seams and make an estimate-you are looking
for about 8 to 10 stitches to the inch. What do you mean, you don't
carry a tape measure with you ? OK, the end joint of your thumb is going
to be about an inch and a half long. If there are much more than 12
stitches along this length we would start to be concerned. Seams are
an inherent weak point in leathers. Look for kit with the fewest. Make
sure that there are as few seams as possible at critical points. Here
are some examples of the kind of seams to look (and look out) for. No
doubt there are others that we have missed out - or simply not seen
yet. Top stitching (the bit that shows on the outside) shown in "aqua"

Open seam. This is NOT the way to do it.

On leathers an open seam should be backed like this.

A properly sewn open seam may be double (left) or single (right) top
stitched.
Single stitched, top stitched folded back seam. Not on MY leathers thank
you.
Double stitched top stitched folded back seam. Much better.
French seam. Slightly bulky but fine for thinner leather.

French seam can also be laid over and single or double top stitched.
Lapped seam simply top stitched. Another no-no.
I don't know if this seam has a proper name, but there is a special
place reserved for people who use it on leathers.
Notice how close the stitching is to the edge of the leather. As soon
as the top stitch fails the seam will tear away.
Many race suits use fabric inserts to save weight and bulk. Inside
arms, elbows and especially behind the knees are often made in this
way. Top class suits will use an aramid textile for this purpose such
as Keprotec™ It is low bulk, elastic and stops the loss of blood flow
to the feet that can occur with very high foot pegs and a bulky material
behind the knees. Look carefully at the kind of material used on a suit
that you are thinking of buying. In this application ordinary stretch
materials are neither a right nor a privilege but a potential liability.
Whatever the stitching, repairs should if possible use the existing
stitch holes to avoid weakening the leather. We, and other reputable
outfits, do this as a matter of course. On the evidence of our own eyes
this practice is not, however, universal.
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Body armour
As mentioned above, body armour is commonly used to increase protection.
It comes in two basic flavours, hard and soft. Which you choose is entirely
up to you. We hold a stock of CE marked soft armour which we personally
like, but it is heavy and quite expensive, however it can be trimmed
to fit armour pockets without compromising its integrity. Soft armour
made from polynorborane (Norsorex™ and Noene™) both absorbs energy under
impact & probably more significantly, spreads the energy transfer
over time, whereas hard armour tends to spread the force over a larger
area. There is a lot of research out there and this is probably not
the place for a technical thesis. Hard armour usually fits into made
to measure pockets and has to be replaced like-for like and would require
holding a large stock.
We can hold hard armour for regular race / track day customers but as
a general rule we will have to buy in hard armour on a case by case
basis if a suit comes in with broken elements. We will not re-fit broken
or damaged armour, though of course we will return it to the customer.
Your call.
Some suits are fitted with sewn or bonded in armour. Bear in mind that
this can make repair or alteration very expensive or in some cases effectively
impossible. Again, your call.
Hint. If you do a lot of track days and your friends call you,
for instance, "Flymo", "Thud", "Crasher" or "Kamikaze" think hard before
buying anything that is going to be hard or plain expensive to repair
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Should I buy second hand?
WELL, as Byson will sell you a used suit it would be hypocritical to
say no. But take care of the things mentioned above - there are some
really good deals to be had but bear in mind that getting the suit up
to scratch may cost a little if it is not perfect. If you buy second
hand, it is cheaper and easier to make a large suit smaller to fit than
to make a small suit bigger, so err on the side of generosity. Having
said that, don't go for a suit or jacket that you could get two of you
in because BIG alterations start to look like re-manufacture from a
price point of view. If you buy second hand from a reputable source
there should be NO visible faults in the garment because it will have
been checked over very thoroughly. Altering a second hand jacket, jeans
or suit to fit can be quite expensive, but the result, to all intents
and purposes, should be pretty much a made to measure bit of kit for
a very reasonable price. Especially if we have done the work. :-)
When buying second hand, always check that existing repairs (replacement
zips especially) have been done to a high standard. Check that re-stitching
has used the existing stitch holes (see above umder Stitching and Construction)
and that the zip does not "ripple". Check the condition of
the zips closely.
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Gloves
The skin on your hands is very thin and very sensitive and the human
hand is a complicated bit of kit. For this reason your hands deserve
the best protection you can afford. Leather will give you protection
from abrasion and hard armour can help protect joints.
Leather gloves can be repaired but hard armour makes this more difficult
and sometimes impossible. The fit of gloves is also very important.
If the fingers are too short this can cause cramping in the hand, too
long and precise control becomes hard. Gloves that are too loose can
come off in a crash and gloves that are too tight can stop blood circulating.
Shop around and find what suits you.
A radical solution is to have gloves made to measure. These will usually
be a leather and Kevlar™ construction without hard armour (because hand-made
gloves are made inside out and then turned, which becomes hard or impossible
when armour is incorporated - this is why it is often impossible to
repair armoured gloves) and will cost a fair amount to buy.
Custom made gloves are probably only going to be necessary if you are
an unusual size or if you have an existing injury. We can also alter
un -armoured gloves to accommodate missing fingers for instance. In
the right circumstances armoured gloves could also be similarly changed.
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Boots
Like hands, feet are mechanically complex and also like arms are prone
to flailing about on the end of limbs during a crash. Boots should fit
well and protect the ankle which is a very vulnerable area. Comfort
is essential in a boot, so if you are buying footwear to both ride and
walk in, make absolutely certain you will be able to do both. It is
no good riding comfortably through France and then finding you can't
walk round Mont Saint-Michel. That kind of thing can ruin your day.
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Waterproof leather?
Sorry. There really is no such animal. Leather is a breathable material
and will tend to let in the rain. Even well treated leather will only
be shower proof and even then the seams will leak.
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Wet leather
If you get really wet, be careful how you dry your leathers. Take
out the lining (You DID buy a suit with a take-out lining, didn't you
?), take out the body armour and hang your kit up on hangers (not on
a hook using the hanging loop) and put somewhere cool, dry and well
ventilated to dry. Ah. You got THAT wet. Well, put an old newspaper
under it to catch the drips. Meanwhile you can put the lining in a net
bag and put it in the washing machine.
Now leave it for 24 hours. If it dries out much quicker than that the
leather could be damaged. Turn it round now and then to let the leather
dry evenly. When dry, you can treat using a cream-type leather dressing
VERY SPARINGLY - try to find a cream that is formulated with bike kit
in mind. Again, leave overnight to dry.
Leather is very resilient stuff and if your kit has dried out slowly
enough it will be none the worse for the experience. We have had holidays
on the bike where we have had to dry the leathers out every night for
a week and a half. (At which point we cracked and brought expensive
French oversuits. Which are damned good)
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Textile suits
We (I) like textile over suits. Textile kit is fine and it is usually
waterproof. Until it gets damaged. Textile kit is not as easy to repair
as leather and it is hard (by which I mean it is going to cost a bit
more) to repair and keep waterproof. We can and do repair and alter
textile clothing but getting an exact or even a good colour match is
difficult with some colours. We have no personal experience of body
surfing tarmac in textile kit so we can't offer any advice as to it's
suitability for this activity. Some of our mates swear by it.
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Zips
Nylon helical. No ifs & buts, go for nylon helical. For a fashion jacket
or if you are into the retro look (or for a classic jacket like a flying
jacket, but genuine - original manufacturer and model - zips are rather
expensive and hard to find) then by all means go for a metal zip, but
for bike gear the helical is stronger, tolerates curves and bends better
and won't give track day scrutineers a headache. Any of the big fastener
manufacturers is fine, we have our preferences, but we wouldn't NOT
buy a jacket just because we don't like the zip manufacturer. As a rule,
bigger is better. Zips are sized by the span across the teeth when done
up. We tend to use 8 and 10 mm on bike clothing, finer (3mm) on zip-in
linings.
Bear in mind if you plan to do track days that a two piece suit is often
acceptable (but check before you go) IF the joining zip is:
Full length round the body
Sewn to the leather of the jacket in at least four places, not on an
elastic piece and not sewn to the jacket lining
NOT metal. Scrutineers do not like metal zips. At all. Anywhere.
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Badges
If you are buying, especially second hand, or having club or other
badges sewn on to your leathers, PLEASE don't have them sewn on through
the lining. It makes any subsequent repair or other work much more expensive.
Oh. And it's dead naff.
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Leather for fashion garments
Just about anything that can be called leather can and has been used
for fashion garments. In this field the look is all important, and if
it floats your boat, go for it. One thing to bear in mind here is that
for some garments the leather will be thinned down lots to get the look
the designer wants, and this will leave the leather VERY weak. The leather
finish is usually "printed" on to the surface and the polymer material
used is not designed for strength. As the leather is thinned you end
up with a material more like the finish than like leather and it will
tear and mark VERY easily. The garments will also stretch and distort
easily so CAVEAT EMPTOR.
GwenTheBoss formerly worked as the Sample Maker for John Richmond, who's
use of leather has always been both adventurous and practical. The rule
of thumb here was that under 1mm napa leather was impractical. Based
on this advice and our own experience (and sadly that of our customers)
we would be very wary of buying clothing under 1mm thick . Again there
are exceptions - kangaroo is different- and in the final analysis it
is a fashion garment, not something to keep your skin off the road.
If you like it and you have to have it, there you go.
Byson can probably fix it if you break it.
Second hand fashion garments can be a great buy. We have seen big name
garments in nice condition in charity shops for very attractive prices.
Just remember that if you buy something like this which does not quite
fit (i.e., is a bit big - see above under Should I buy second hand?)
just because you only paid £30 for it, if it needs a hundred pounds
worth of work to make it fit, we will charge a hundred pounds. But you
will have a made to measure garment at a fraction of the price that
the designer would have charged. And quite possibly better finished.
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I have an RAF flying jacket...
Lucky you. They are great garments. I would not recommend them for
bike use but on a really cold day they are toasty warm. An original
Irvin will set you back in excess of £500 and a good repro not
a lot less. They do get damaged and if and when yours needs attention,
get it looked at sooner rather than later, as the damage won't get better
and can get worse quite fast. We have three (or two) ways of doing this.
We can apply a leather patch and overband it. This looks pretty good,
is a good strong repair and is not too expensive. My father's jacket
had an original field repair done this way.
Alternatively we can replace either the whole panel or part of it.
We can do this with new sheepskin, but getting a colour match will be
pretty hard. If you have an original Irvin jacket, we can replace it
with wartime hide. This is the expensive option, but on an original
jacket it is probably the best. We almost certainly can't match the
colour of your jacket exactly, but the finish and general patina will
be a better match than using modern hides with modern finishes.
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Leather care
Keep it clean. Mud and the odd dead fly can be sponged off with a little
warm water. If your kit is dirtier than that, a proprietary leather
cleaner used according to the instructions will remove light surface
dirt. Try to get one of the foaming type, do small areas at a time and
leave to dry in a cool well ventilated spot overnight.
As far as leather conditioners go, we have had some quite interesting
discussions with various other professionals about this, so as above,
this is just our opinion and applies to bike leathers rather than (for
instance) leather furniture. Use a cream type conditioner rather than
an oil or "greasy" type. Use it VERY sparingly and apply with
your finger tips, rubbing in so that the leather surface just feels
warm. As with cleaning, just do a bit at a time - say half a panel.
Leave the garment to dry overnight and buff with a clean dry cloth next
morning to remove any excess. For some reason vintage and some repro
leather flying jackets (Irvin, B3 etc.) tend to be treated with a "conditioner"
which resembles Marmite. This may well have served well in wartime use
but PLEASE try to avoid it. One of the components can soften the surface
finish on the sheep skin which then sets again. Eventually the over-tapes
becomes amalgamated with the body panels and repair becomes...difficult.
The stuff also coats everything it comes into contact with. Sewing machines,
people, cats, you name it.
ALWAYS use a coat hanger when hanging leathers as they are heavy enough
to distort themselves if you habitually use a hanging loop. A proper
hanging loop on a leather jacket is attached to a strong tape stitched
into the shoulders and spreads the weight but only a small number of
makers bother with this. Motorcycle leathers are heavy enough to break
many commercial hangers, and we can supply a specialist hanger if you
need one.
If leathers are very dirty - after a season racing or as the result
of a bit of an off, get them cleaned professionally. You are not just
paying for labour, you are also paying someone to know what kind of
intensive cleaner to use and what treatment will get the kit clean and
not damage it. A serious clean and "tart up" can take between
three and five days and includes cleaning, refinishing and colouring
as well as conditioning.
Saddle soap. People keep asking us about saddle soap. Honest, we are
just standing at the bar with a pint and a Merlot minding our own bizz
and people ask about saddle soap. Well. Not quite, but you know what
we mean. Many people think it is the bee's knees for cleaning leather.
They have not tried it, but they think that anyway. It's called SADDLE
soap. It IS OK for cleaning saddles and tack, but the "soap"
constituents are mainly in there to emulsify the conditioning ingredients
and not for cleaning. Additionally it was developed in an era when people
either had, or were, grooms, so saddle soap is really a professional
product and as such we would advise caution. To the point of abstinence.
Cleaning and conditioning fashion leathers is very much as the above
but with added emphasis on the "use water / cleaner / conditioner
VERY sparingly". Grubby fashion leathers are also a candidate for
professional dry cleaning, but try to find a leather specialist cleaner
rather than a general dry cleaner.
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What is napa leather ?
I am trying to avoid getting technical in here, but most fashion garments
(until you start getting to the VERY expensive or heavy items) are made
from napa leather which is a finished sheep hide. It is soft and comfortable.
But like other soft and comfortable products it is not as strong as
cow leather. There is a lot of information on the internet about leather
and leather processing if you are interested. Our favourite site appears
to have gone pear-shaped™ at the moment. I will include links when I
find a site or sites as good.
There is an interesting article by Martin Fitzpatrick here...
which we broadly agree with.
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