Girth Fit and Material Guide: Leather vs Synthetic vs Anatomic

A girth does one job: it holds the saddle where it belongs. But the length, the material and the shape all change how comfortable that job is for your horse or pony, and how stable it feels for the rider. This guide covers how to size a girth, how leather, synthetic and anatomic girths really differ, and how to choose the right one.

Why girth fit matters

The girth sits in one of the most sensitive areas of the body: behind the elbows, across the sternum and along the ribcage. Skin here is thin, and the elbows move constantly. A girth that is too tight, too stiff, too narrow or the wrong shape can cause rubbing, sores and a horse that pins its ears or fidgets when tacked up.

Fit also affects the saddle itself. A girth that sits too far forward or back lets the saddle slip, which is why riders who struggle with a saddle moving often find the answer is partly in the girth. If your child tends to feel unstable, our guide on why children keep slipping in the saddle covers the wider picture.

Girths matter even more with treeless saddles, such as the Versatile Apex Saddle. With no rigid tree to spread pressure, the girth plays a bigger part in keeping the saddle stable, so choosing a soft, well-fitted one is worth the care.

How to size a girth

Measure first, then check against a guide

1. Tack up with the saddle in place and a well-fitted saddle pad, with the girth billets hanging down evenly on both sides.
2. Run a soft tape measure from the bottom of the billet strap (where the girth buckle would sit) on one side, under the belly at the girth groove, to the same point on the other side.
3. That measurement is your starting point. Girths are sold in 2-inch (or 5 cm) steps, so choose the nearest size that leaves the buckles in the right place (see below).

The sizes below are only a rough guide, because build, saddle type and billet length all vary. Always measure your own horse or pony.

Where the buckles should sit

Once tightened, the girth buckles should sit roughly halfway up the billet straps on each side, with a few holes spare above and below. If the buckles are right at the top, the girth is too short and you have no room to tighten. If they sit at the bottom, the girth is too long. Buckles that are too high or low can also press on the saddle flap or the rider's leg, so level and even matters.

Leather girths

Leather is the traditional choice and still the one many riders trust. A good leather girth is strong, long-lasting and looks smart with a leather saddle.

Pros

• Very durable when looked after, and often the longest-lasting option
• Moulds gently to the horse's shape over time
• Does not hold on to sweat smells in the way some synthetics can

Cons

• Needs regular cleaning and conditioning, or it dries, cracks and stiffens
• Stiff new leather can rub until it is broken in
• Usually costs more, and a poorly shaped one can restrict elbow movement

Leather suits riders who enjoy tack care, horses with no skin sensitivity, and anyone who wants a girth that lasts for years.

Synthetic girths

Synthetic girths are made from materials such as neoprene, nylon webbing, soft-touch fabrics and fleece or faux-fleece linings. They are popular for everyday riding and for ponies that grow out of tack quickly.

Pros

• Easy to wash, quick to dry and low maintenance
• Soft and flexible from the first ride, so little breaking in
• Generally the most affordable option, which suits growing ponies

Cons

• Some materials, such as basic neoprene, trap heat and sweat, which can irritate sensitive skin
• Cheaper versions can lose their shape or fray sooner than leather
• Dirt and sweat build-up can cause rubbing if they are not washed regularly

Look for breathable, moisture-wicking linings and keep a spare so one can be washed while the other is in use.

Anatomic girths

Anatomic is a shape rather than a material. An anatomic (or contoured) girth is curved so it clears the point of the elbow, allowing the leg to swing forward without being pinched. You can find anatomic girths in leather, synthetic and mixed materials.

Pros

• Gives the elbows more room, which many horses find more comfortable
• Can help horses that are girthy or have a sensitive elbow area
• Often helps keep the saddle steadier on horses with a rounder barrel

Cons

• Must be fitted the right way round, as the contour sits toward the front
• Usually costs more than a straight girth
• Not every horse needs one, and a poorly shaped one can sit in the wrong place

So the real question is rarely "leather or synthetic or anatomic". It is the material and the shape together, for example a soft synthetic anatomic girth or a leather anatomic one.

Side-by-side comparison

Signs your girth isn't right

• Rubbed hair or sore patches behind the elbows or along the girth line
• Pinned ears, tail swishing or fidgeting when the girth is done up
• The saddle slipping forward or to one side
• Buckles sitting at the very top or bottom of the billets
• Uneven tightness, with one side noticeably tighter than the other
• White hairs or skin thickening along the girth area, which can follow repeated pressure

If a horse stays girthy even after you have changed the girth, the cause may not be the tack. Ask your vet, saddle fitter or physio to check them over.

How to choose

• Growing pony or child's mount: a soft synthetic girth is practical, affordable and easy to replace as they grow. Our guide to the signs your child has outgrown their saddle is a helpful companion, as saddle and girth often need reviewing together.
• Sensitive or girthy horse: try an anatomic girth with a soft, breathable lining.
• Daily riding and long-term value: a well-made leather girth, kept supple, is hard to beat.
• Treeless saddle: choose a soft, wide, well-padded girth so pressure is spread across the sternum.
• Hot weather or heavy sweaters: look for breathable, wicking materials and wash them often.

Looking for a saddle to go with your new girth? Browse our children's horse saddles, pony saddles and youth saddles.

Care and replacement

• Leather: wipe off sweat and mud after each ride, then clean and condition regularly so it stays supple.
• Synthetic: wash according to the label and dry fully before using again.
• All girths: check stitching, billet loops and buckles often, and replace any girth with frayed webbing, cracked leather or loose stitching straight away.
• Keep a spare: alternating two girths lets each one rest and dry.

Frequently asked questions