Leather Jacket Guides

Snaps take a beating on a leather jacket. Collar tabs, cuffs, pocket flaps and storm flaps get opened and closed thousands of times. The good news is that most problems are simple, and learning to fix a snap on a leather jacket mostly comes down to knowing which of its four parts has failed.

How does a snap on a leather jacket work?

Most jacket snaps are four-part sets. Two parts make the top half and two make the bottom half:

• Cap: the rounded face you see on the outside of the flap or tab.
• Socket: the female half, joined to the cap through the leather. Inside is a small spring that grips the stud.
• Stud: the male half, with a raised knob that clicks into the socket.
• Post: the flat back piece, sometimes called the eyelet, that holds the stud on from the underside.

Each pair is joined by rolling a metal barrel over inside a hole in the leather. Trouble shows up in three ways: dirt or corrosion builds up and the snap gets stiff, the stud and spring wear and it gets loose, or the leather around the hole tears and the snap pulls out.

How do you fix a stiff or stuck snap?

A snap that needs real force to open strains the leather around it every time you pull. Free it up like this:

1. Protect the leather. Slip a piece of paper or low-tack tape around the snap so nothing you use touches the hide.
2. Clean the metal. Use a dry, soft toothbrush or a cotton swab to clear lint and grit from the socket and around the stud. For greenish corrosion, a swab barely dampened with rubbing alcohol, on the metal only, usually lifts it.
3. Add a trace of lubricant. Rub a little beeswax or plain lip balm onto the stud's knob, then open and close the snap ten or twenty times. Wipe away every bit of excess.
4. Skip liquid oils and sprays. They creep into the leather and can leave dark stains.

A brand-new snap that is simply tight often wears in after a few dozen cycles. If it stays too stiff, a leather repair shop can swap the socket for one with a lighter spring.

How do you fix a snap on a leather jacket that won't stay closed?

A snap that pops open on its own has lost grip between the stud and the socket's spring. You can often restore it in a few minutes:

1. Wrap the jaws of a pair of small pliers in tape or a scrap of cloth.
2. Gently squeeze the stud's knob from two sides, just enough to make it very slightly oval. You want a tighter fit against the spring, not a crushed stud.
3. Test the snap. Rotate the halves to find the position that grips best, and squeeze again in tiny steps if needed.
4. If the stud looks fine, a very light pinch across the socket's opening can do the same job. Go carefully, because too much and the snap will not close at all.

If neither works, the spring is worn out and the honest fix is a new snap.

What if the snap has pulled out of the leather?

This happens when the hole stretches or tears, usually because the flap was yanked open by the leather rather than by the snap. A new snap set in the same torn hole will not hold, so the area needs reinforcing first:

1. Remove what is left of the old snap (see below) and trim any loose fibers around the hole.
2. Cut a small patch of thin leather or sturdy fusible interfacing, a little larger than the snap, and glue it to the inside of the flap behind the hole with leather adhesive. If the tear runs to the edge, close it from behind first; our guide to repairing a torn leather jacket shows how.
3. Once the glue has cured, punch a fresh hole through the leather and the patch. If the old hole is badly stretched, shift the new snap a few millimeters into sound leather, and move its partner to match so the halves still meet.
4. Punch the hole slightly smaller than the post rather than larger, so the leather grips it.
5. Set the new snap through both layers. The patch spreads the load so it will not pull through again.

Biker jackets carry more hardware than almost any other style, and a collar tab like the one on our maroon biker jacket is exactly where snaps work hardest. Our biker jacket guide covers the style in depth.

Women's Maroon Leather Biker Jacket with Snap-Tab CollarMen's Black Leather Asymmetrical Biker JacketMen's Black Heavyweight Cowhide Asymmetrical Biker Jacket

How do you replace a broken snap?

If a cap is cracked, a spring has failed or the plating has worn through, replace the whole half rather than a single piece, since the parts are made to work as a set.

Removing the old snap. Work from the inside of the jacket. Use flush cutters or end nippers to snip through the rolled barrel of the post or socket, or carefully pry the two pieces apart, then lift them out. Cover the outside with tape or a cloth so a slip will not scratch the leather, and go slowly.

Matching the size. Measure the old cap's diameter and the thickness of the leather. Snap sizes are given as line numbers: line 20 has a cap of about 1/2 inch and line 24 about 9/16 inch, and long-post versions exist for thicker layers. Match the finish too, so the new snap does not stand out.

Setting the new snap. Push the cap's barrel up through the hole from the outside and rest the cap on a concave anvil so its dome is not flattened. Place the socket over it and strike the setter with a mallet: a few firm, straight blows, then lighter taps while rotating the setter slightly so the barrel rolls evenly. Repeat for the stud and post on a flat anvil. A hand press or snap pliers with the right dies does the same job with more control.

When should you take it to a repair shop?

• The snap sits on a visible front panel or collar where a mistake would show.
• The leather around the hole is torn, thin or cracked.
• You cannot find a matching size and finish.
• The back of the snap is hidden behind a lining that would need opening.

A cobbler or leather repair specialist can usually reset a snap quickly and keeps the dies and spare parts to match. The same shop is a good call for zipper trouble, and our guide to fixing a leather jacket zipper covers what you can try first.

How do you stop snaps from failing again?

• Open snaps by pinching the metal near the cap, not by pulling on the leather flap.
• Close them by pressing the two halves together squarely, with a fingertip behind the leather.
• Keep them clean and dry, and wipe off rain and road salt.
• When you condition the jacket, keep the product off the metal parts.
• Fix a loose snap early, before the strain tears the hole.

FAQ

Can I fix a snap without special tools?

For stiff and loose snaps, yes: cleaning and a gentle squeeze with taped pliers cover most cases. Replacing a snap properly needs a setter and anvil or a snap press, so for a single snap a repair shop is often the easier route.

Can I use glue to reattach a snap?

No. Glue will not hold against the pull of opening and closing, and it can stain the leather. A snap has to be set mechanically through the leather, ideally with a reinforcing patch behind it.

Why does my snap keep popping open?

The stud has usually worn or the socket spring has weakened. A gentle squeeze with taped pliers often tightens it; if not, replace the snap.

Knowing how to fix a snap on a leather jacket keeps a favorite out of the back of the closet. If you are shopping for your next one, browse our men's biker jackets and women's biker jackets.