Archery Arm Guard DIY: Make Your Own in 6 Steps (Beginner Guide)

Updated November 2026

An archery arm guard DIY project is one of the most practical first builds for a new archer. In a single afternoon, you can measure your forearm, cut a shape from leather or a foam-backed material, add a strap system and test the fit on your bow arm. This guide walks you through the process step by step, explains the materials and tradeoffs, and points out the mistakes that send beginners back to the workbench.

Why Make a DIY Arm Guard Instead of Buying One?

A commercial arm guard is designed to protect your forearm from string slap, the sharp sting that happens when the bowstring snaps against your inner wrist or forearm after release. Store-bought guards come in fixed sizes, so a shopper with an unusual arm length or a wide forearm often ends up with a guard that rides up, rotates or leaves gaps. Making your own lets you size the guard to your exact measurements and adjust it as your shooting form changes.

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

A DIY guard also teaches you how the parts work together. Once you understand why the strap tension matters and how the contour follows the forearm, you will be better equipped to pick a commercial guard later, and to spot a poor fit in the first thirty seconds of trying one on. If you are still comparing options, the article Arm Guard for Bow: How to Choose, Fit and Wear One Correctly covers the buying side in detail.

Materials and Tools You Will Need

Most homemade guards use one of two approaches: a leather base with a shaped profile, or a flexible synthetic or foam base covered with a durable fabric. Leather is traditional, molds well over time and has a pleasant feel. Synthetic materials are easier to clean and hold their shape in wet weather. Choose the one that suits your climate and your patience level.

• A sheet of 2 to 3 mm veg-tanned or similar firm leather, or a 3 to 5 mm sheet of closed-cell foam or neoprene for a softer guard
• Two or three strap sets: a buckle or hook-and-loop closure, plus a short elastic or leather keeper if you want extra retention
• A flexible measuring tape, a marker or chalk, and a ruler
• A sharp utility knife or leather cutting knife, a cutting mat and a straightedge
• A leather punch or hole punch sized for your strap rivets, plus rivets or grommets with setting tools
• Contact cement or a waterproof adhesive suited to your base material
• Sandpaper (120 to 220 grit) and a dull edge tool to round corners
• Optional: a heat gun or hot water to help shape leather, and a damp cloth for conditioning

Step 1: Measure Your Forearm Correctly

Good measurements decide how well the finished guard fits, so take them with care. Stand in your normal shooting stance with the bow arm extended, elbow slightly soft, wrist relaxed. Have a friend help if possible, because it is easy to pull the tape too tight or measure at the wrong angle.

1. Measure the total length from just below the elbow crease to the base of the knuckles on the back of your hand. Write this number down.
2. Measure the circumference of the forearm at the widest point, typically about two-thirds of the way down from the elbow.
3. Measure the width of your forearm from the inside of the wrist to the outside edge, which helps you decide how wide the guard should be.
4. Note where your bowstring strikes when you shoot. Many archers get more slap on the inside forearm, and a few get it on the outside. Mark that area with chalk on your own arm while you are in form.

Add roughly 5 to 10 mm of ease to the circumference so the guard can sit snugly without cutting off circulation or pinching. If you shoot in cold weather with a jacket, measure again with the sleeve on and shoot a few ends to check.

Step 2: Draft a Pattern

Create a paper pattern before touching your leather or foam. Lay a sheet of kraft paper or cardboard on a flat surface and draw a shape that is roughly oval or teardrop in profile. The length should match your measurement from elbow to knuckles, and the width should cover the strike zone you marked. Keep the top edge slightly curved so it follows the inner elbow area without digging in.

Once the outline looks right, cut it out and wrap it around your forearm. Tape it in place and check the coverage. Adjust the width where the strings tend to hit, and trim anything that bunches or sits too low on the wrist. You can also find ready-made patterns in the article Archery Arm Guard Pattern Free: How to Make Your Own Step by Step, which is a useful reference if you prefer to start from a template.

Checklist for a Good Pattern

• The guard covers the full strike zone with at least 15 mm of margin on each side
• The top edge does not sit over the elbow crease, which would restrict bending
• The bottom edge stops short of the wrist joint so the hand flexes freely
• The shape is symmetrical unless you have a specific reason for asymmetry
• Strap positions are marked, with at least two straps on the forearm

Step 3: Cut and Shape the Base Material

Transfer your pattern to the base material using a marker, then cut slowly with a sharp blade. Leather cuts cleanly when the knife is sharp and you keep steady pressure. Foam or neoprene can be cut with the same knife, but cut with a light touch so the edges stay square.

Next, round every corner and edge. Sharp edges catch on clothing and can cut into the skin during a long session. Sand the cut edges of leather lightly and burnish them with a damp cloth if you want a finished look. For leather, shaping is the key step. Soak the piece briefly in warm water, or gently warm it with a heat gun, then wrap it around your forearm and hold it in position until it dries. Repeat as needed until the guard follows the natural curve of your arm.

Shaping Leather Without Cracking It

Leather is forgiving but can crack if it is overheated or bent too sharply while dry. Keep the heat low and moving, check the surface often, and stop when the material feels pliable. Let the piece cool and dry fully on your arm before removing it. If you are working with a thicker piece, consider skiving the back edge slightly to reduce bulk.

Step 4: Attach the Straps and Fasteners

Strap placement determines how well the guard stays put. Most guards use two straps: one near the elbow and one near the wrist, with an optional third strap in the middle for long or wide forearms. Mark the positions on the outer face of the guard, punch holes, and set rivets or grommets so they sit flush and do not poke through to your skin.

Buckles give you the most adjustability, while hook-and-loop closures are quick to undo and easy to replace. Some archers prefer a combination of a hook-and-loop strap at the elbow and a buckle at the wrist. Whatever you choose, make sure the strap ends are trimmed and folded so they do not rub the inner arm. The article Long Archery Arm Guard: How to Choose, Fit and Use One Properly explains how strap length affects the fit on longer forearms, which applies to DIY builds too.

Step 5: Add Padding or a Protective Face (Optional)

If your base is firm leather and you find it harsh against the arm, add a thin layer of felt, cork or foam to the inner face. Glue it with contact cement and let it cure fully before wearing. A padded inner face also helps the guard grip the arm better, reducing movement during the draw. Keep padding thin, about 2 to 3 mm, so the guard does not lose its shape or grow too bulky to fit under a sleeve.

Step 6: Test Fit and Make Adjustments

Before you shoot, put the guard on and do a fit check. Stand in your stance, bring the bow to full draw with an unstrung bow or a light draw weight, then release slowly. Watch for three things: the guard should stay in place through the release, the straps should not dig in when you extend the arm, and the strike zone should be fully covered. If the guard rotates, tighten the straps or add a keeper. If it digs into the elbow, trim the top edge or move the strap.

Shoot a few ends at a close target, then inspect the guard. Look for loose rivets, creases in the leather, and any sign of rubbing on the skin. Make small adjustments and repeat until the guard feels secure and quiet during the shot.

Common Mistakes

• Measuring with a tight tape. A tape pulled too tight produces a guard that feels fine at rest but pinches at full extension.
• Cutting the guard too short. A short guard leaves the strike zone exposed, which defeats the purpose.
• Overheating leather. High heat dries out and cracks leather, especially at the bends.
• Skipping the edge finishing. Rough edges wear through shirts and can scrape the skin over time.
• Placing rivets on the inner face. Rivets on the skin side will press into the arm and leave marks.
• Ignoring your shooting form. If your form changes, your strike zone may move, so check your guard after a few weeks of practice.

Tips for Better Results

• Make a prototype from cardboard or cheap felt first, then transfer the final pattern to good material.
• Condition leather every few months with a light leather conditioner to keep it supple.
• Wash foam or synthetic guards with mild soap and water, then air dry away from direct heat.
• Keep a spare set of straps and rivets so you can repair the guard without starting over.
• Check the guard before every session, especially after a damp or hot day, when straps can stretch or loosen.
• If you shoot in a jacket some days and in short sleeves on others, make two strap positions so you can adjust the fit quickly.

Recommended gear

A few supplies make the build easier and the finished guard more durable. These are common, widely available items that most DIY archers find useful.

• Leather cutting knife – A sharp, controlled blade gives clean edges on leather and reduces the risk of tearing. View on Amazon
• Leather contact cement – A solvent-based cement designed for leather bonds padding and straps securely. View on Amazon
• Rivet setting kit with leather punch – Setting tools and a punch in matching sizes help you install straps neatly and consistently. View on Amazon
• Leather conditioner – A light conditioner keeps the guard flexible and helps it hold its shape over time. View on Amazon

FAQ

Is a DIY archery arm guard as protective as a store-bought one?

It can be, as long as it covers the strike zone, stays in place during the shot and uses durable materials. Store-bought guards are tested for coverage and retention in ways a home build may not be, so check your guard carefully after each session.

What is the best material for a beginner’s first DIY guard?

Many beginners find closed-cell foam or neoprene easiest to cut and shape, while leather offers a more traditional feel and longer life. Start with whichever you can source and work with comfortably.

How long does a DIY arm guard usually take to make?

Most builds take an afternoon once you have the materials, with extra time for drying or adhesive curing. Leather projects can take longer if you need several shaping attempts.

Do I need a specific thickness of leather?

A firm leather around 2 to 3 mm is a common starting point. Thinner leather may wrinkle or lose shape, while very thick leather can be bulky and hard to shape around the arm.

Why does my guard keep rotating on my arm?

Rotation usually means the straps are too loose, the top edge is too wide, or the shape does not follow the arm’s curve. Tighten or reposition the straps, add a keeper, and recheck the pattern against your forearm measurements.

Can I use the same guard for different draw lengths or bows?

Often yes, because the guard protects the forearm rather than fitting the bow. However, your strike zone can shift with different bows or form changes, so recheck the coverage whenever you change equipment.

How do I clean a leather arm guard?

Wipe it with a damp cloth to remove sweat and dirt, let it air dry away from heat, and condition it lightly once or twice a year. Avoid soaking it in water or using harsh cleaners.

When should I replace my DIY guard?

Replace it if the base cracks, the rivets loosen, the straps fray or the guard no longer covers the strike zone. Check it regularly, since worn equipment can slip during the shot and cause injury.

Conclusion

A well-made archery arm guard DIY project gives you a guard sized to your arm, shaped to your strike zone and easy to adjust as your form develops. Measure carefully, draft a pattern before cutting, shape the base with patience and test the fit before you rely on it. With a few practice ends and small adjustments, you will have a guard that protects your arm and stays out of your way.

Related reading

• Women's Archery Arm Guard: How to Choose and Fit One Properly
• Extra Long Archery Arm Guard: How to Choose the Right Length and Fit
• Archery Youth Arm Guard: How to Choose and Fit the Right One

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