Archery Arm Guard Leather Pattern: A Practical Guide (2026)

Updated November 2026

An archery arm guard leather pattern is a template you trace onto leather to cut a forearm guard that protects your bow arm from string slap. In this guide, you will learn how to measure your forearm, adapt a pattern to your draw length and bow type, cut and shape the leather, and fit the finished guard so it stays put during a full string of shots. Most beginners can complete a basic version in an afternoon with a few common tools.

What an Arm Guard Pattern Does and Why Shape Matters

An arm guard shields the inside of your bow forearm from the bowstring when it snaps forward after release. Leather is the traditional material because it is tough, quiet and forgiving when it takes a hit. A good leather archery arm guard pattern accounts for three things: the length of coverage, the width across the forearm, and the curve that lets the guard sit against the muscle without pinching.

Shopping for one? See our guide: 4 Best Archery Leather Arm Guard Options for Target Archers (2026).

Shape matters more than many new archers expect. A flat rectangle of leather will roll, flap and migrate toward your wrist or elbow. A pattern with a gentle taper and a slight curve follows the anatomy of the forearm and stays in place with minimal strapping.

Tools and Materials You Need

Gather everything before you start so you are not interrupted mid-cut. Most of these items are common in a home workshop or craft room.

• Vegetable-tanned leather, roughly 2 to 3 mm thick, large enough for a piece about 12 inches by 6 inches
• A flexible tape measure and a pencil or fine-tip scribe
• Heavy paper or cardstock for the pattern
• A sharp utility knife or leather knife with replacement blades
• A metal straightedge or ruler
• A cutting mat or scrap board
• Leather punch or awl, plus a mallet
• Waxed thread and a harness needle if you plan to stitch
• Edge beveler and burnishing tool, optional but useful
• Rivets, buckles or hook-and-loop strap material for closure

Step 1: Measure Your Forearm Correctly

Good measurements make the difference between a guard that fits and one that does not. Stand with your bow arm extended as you would at full draw, with your elbow slightly bent and the forearm relaxed.

1. Measure the forearm length from just below the elbow crease to the base of the wrist, along the outside of the arm. Record this number as your base length.
2. Measure the circumference of the forearm at the widest point of the muscle, typically about one-third of the way down from the elbow.
3. Measure the circumference again at the narrowest point near the wrist.
4. Mark the intended strap positions on your arm with a removable marker so you know where the guard will sit.

Many archers add 1 to 2 inches to the base length if they want more coverage on the inside of the arm, which is where string slap most often lands. Keep the width measurement honest; a guard that is too tight will restrict blood flow and wrinkle during the draw.

Step 2: Adapt the Pattern to Your Measurements

Most published leather archery arm guard patterns are sized for an average adult forearm. Before you trace one, compare its dimensions with your own numbers and adjust.

Scaling the Length and Width

Lay the pattern on paper and mark your base length along the centerline. Next, mark your widest circumference as a width across the middle, dividing it by roughly 2 to get the flat half-width you need on each side of the centerline, then add a small allowance for the leather to wrap around the arm. Redraw the outline using these points.

Adding the Taper

Make the guard narrower at the wrist end than at the muscle. A taper of about 10 to 15 percent from the widest point to the wrist end is a common starting point. This keeps the guard from sliding down the arm and reduces bulk over the wrist bones.

Choosing Strap Positions

Plan at least two straps: one near the elbow and one near the wrist. Mark their centers on the pattern and make sure the strap slots will line up on the outer edge of the guard so the closure sits away from the string path.

Step 3: Trace and Cut the Leather

Cut your paper pattern out cleanly, then lay it on the leather with the grain running along the length of the forearm for the most flexible fit. Hold the pattern flat with weights or your hand and trace the outline with a stylus or pencil. Cut slowly with a sharp blade, keeping the knife vertical so the edges stay square. Cut the strap slots and punch the rivet or buckle holes at this stage, while the leather is still flat.

Step 4: Shape the Guard and Set the Curve

Leather needs moisture and time to take a curve. Dampen the guard lightly on the back, not soaked, and wrap it around a cylinder or your forearm wrapped in plastic wrap. Hold the shape for several minutes, then let it dry completely. Repeat if needed. Once dry, the leather keeps the curve and resists flattening.

Step 5: Finish the Edges and Assemble

Bevel the cut edges with an edge tool, then burnish them until they feel smooth. Attach your hardware: rivet the buckles or straps to the guard, or stitch the strap channels with waxed thread using a saddle stitch. Test the fit on your arm before you finalize the closure, and adjust the strap length so the guard sits snug but does not compress the muscle.

Fitting and Wearing the Guard

Put the guard on with your bow arm extended and tighten the lower strap first, then the upper one. The guard should stay in place when you raise the bow and when you return to a relaxed position. Check that the string path clears the leather at full draw and at release. If the string catches on an edge, trim or reshape that section.

Common Mistakes

• Cutting to a flat rectangle without a taper, which causes the guard to roll and slide.
• Making the guard too tight, which restricts circulation and creates pressure marks.
• Placing straps directly in the string path, which can snag or cause early wear.
• Skipping the shaping step, so the leather fights you every time you put it on.
• Using thin, soft leather that tears at the rivet holes after a few sessions.
• Forgetting to account for winter layers if you shoot outdoors in cold weather.

Tips for a Better Result

• Make a paper test fit before you cut leather. It costs nothing and catches sizing errors early.
• Cut a second guard for a different bow or a new draw length rather than trying to adjust one guard for everything.
• Keep a small piece of scrap leather to test punches, rivets and stitch spacing.
• Oil the leather lightly once a season to maintain flexibility, and store it flat away from heat.

Recommended Gear

• Tandy Leather Craftool Edge Beveler helps you round the cut edges so the guard feels smooth against the skin and does not catch on clothing. View on Amazon
• Tandy Leather Swivel Knife makes clean, controlled lines when you mark stitch lines or decorative edges on the guard. View on Amazon
• Craftool Stitching Pricking Iron spaces the stitch holes evenly so the strap channels look and wear consistently. View on Amazon

FAQ

What leather thickness works best for an arm guard?

Most archers use vegetable-tanned leather between 2 and 3 mm thick. Thinner leather tears more easily at rivet holes, and thicker leather is stiff and hard to shape.

Can I use a store-bought arm guard pattern instead of drafting my own?

Yes. A published pattern is a good starting point. Always compare its dimensions with your own forearm measurements and adjust the length, width and strap positions before cutting.

How long should a leather arm guard be?

Length depends on your forearm and how much inside-arm coverage you want. Many adults fall between 6 and 9 inches of coverage, though archers with longer forearms or more string slap sometimes choose longer guards.

Should the arm guard be tight or loose?

It should be snug enough to stay in place when you raise the bow but loose enough that you can feel your pulse and you do not leave pressure marks after shooting.

How do I stop my leather guard from stretching?

Use leather of adequate thickness, avoid soaking it, and store it flat. Sizing the guard correctly from the start also prevents the strap stress that causes stretching.

Do I need to stitch the guard or can I use rivets?

Both work. Rivets are faster and sturdy for straps. Stitching gives a more traditional look and distributes stress along the seam. Choose the method you are comfortable executing well.

Is a leather arm guard safe for beginners?

Leather arm guards are a standard protective tool in target archery. If you have a skin condition, circulation problems or any injury to your arm, check with a doctor or a qualified archery coach before wearing a tight guard for long periods.

Conclusion

A well-made archery arm guard leather pattern gives you a protective, comfortable guard sized to your own arm. Measure carefully, taper the shape, cut cleanly and shape the leather before final assembly. Test the fit at full draw, and adjust until the guard stays put and clears the string path.

Related reading

• Archery Arm Guard Pattern Free: How to Make Your Own Step by Step
• Women's Archery Arm Guard: How to Choose and Fit One Properly
• Traditional Archery Arm Guard: 3 Best Picks for Target Archers (2026)
• Long Archery Arm Guard: How to Choose, Fit and Use One Properly
• Extra Long Archery Arm Guard: How to Choose the Right Length and Fit
• DIY Leather Arm Guard: 5 Best Picks for Making or Buying One (2026)

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