The best underwear for horse riding is a longer-leg boxer brief or compression short in a smooth, stretchy synthetic fabric, with flat seams and a hem that stays where you put it. It sits between you and the saddle without bunching, and it keeps fabric from creeping up the inner thigh during rising trot. Short cuts and loose boxers are the two styles most riders give up on first.
Why riding is hard on underwear
Riding asks something unusual of your underwear. Your legs are spread around the horse, your inner thighs grip the saddle flaps, and your seat moves with every stride. Add snug breeches or jodhpurs on top and any small flaw in the fit becomes very noticeable within the first ten minutes.
- Inner-thigh contact: the inside of the leg is pressed against leather for the whole ride, so seams in that area need to be flat or absent.
- Constant motion: sitting trot and canter mean thousands of small movements. A leg opening that creeps will end up folded in the crease of your hip.
- Tight outer layer: breeches are cut close, so a thick waistband or a bulky pouch shows up as a ridge or a pressure point.
- Warmth and sweat: even on a cold yard, an hour of riding gets warm, and fabric that stays damp feels heavy against the saddle.
Leg length: the single biggest decision
For most riders, leg length matters more than fabric. The goal is for the hem to finish somewhere the saddle and your leg do not trap it.
| Cut | How it rides | Good for |
|---|---|---|
| Briefs | Leg opening sits right where the thigh meets the saddle; nothing to ride up, but the edge can rub | Short hacks, riders who dislike any fabric on the thigh |
| Trunks / short boxer briefs | Hem lands mid-way up the inner thigh, exactly in the grip zone | Lessons and walk-trot work, if the hem is soft and stays flat |
| Long-leg boxer briefs | Fabric covers the area that touches the saddle flap; hem finishes lower on the leg | Most everyday riding, jumping and longer hacks |
| Compression shorts | Snug all the way down, so the fabric moves with your skin instead of against it | Long days in the saddle, lessons with lots of sitting trot |
If you already struggle with boxer briefs climbing up, our guide to boxer briefs riding up on thicker thighs explains why it happens and what to look for in a hem.
Fabric: smooth beats fluffy
Cotton is comfortable for a short ride, but it holds on to moisture and its texture creates more friction once it is damp. For riding, a smooth synthetic blend with stretch tends to feel better from mount to dismount.
- Polyamide or polyester with spandex: slick against breeches, moves with you and dries quickly. Our Long Leg Ice Silk Boxer Briefs are 88% polyamide and 12% spandex; the 9-Inch Compression Shorts are 90% polyester and 10% spandex.
- Modal with spandex: softer and more drapey, a good middle ground for relaxed hacks. The Quick-Dry U-Pouch Trunks are 91% modal and 9% spandex with a mesh zone in the pouch.
- Cotton with spandex: fine for a short session or yard work, and the most familiar feel. Keep a spare pair for the drive home.
Seams, hems and waistbands
Once you have the length and fabric right, small construction details decide whether you notice your underwear at all.
- Flat seams: look for flatlock stitching or seams that sit away from the inner thigh. The 9-Inch Compression Shorts use flat lock seams.
- A hem that grips gently: the Long Leg Ice Silk Boxer Briefs have an anti-roll hem, so the edge stays flat instead of curling into a ridge.
- A wide, soft waistband: riding breeches usually sit at or just above the natural waist. A wider band spreads the pressure and is less likely to fold over when you lean forward in a jumping position.
- No tags: a printed care label avoids a scratchy patch at the back while you sit.
Pouch and support in the saddle
A well-shaped pouch keeps everything settled and stops you from shifting to get comfortable halfway through a canter. A contoured or U-shaped pouch gives room without pressing against the pommel area, while a flat front can feel cramped when you sit deep.
The Moisture-Wicking Compression Boxer Briefs combine a contoured pouch with a wide waistband and a snug, shorter cut, which suits riders who prefer something closer to a trunk. If you like more coverage on the thigh, the compression shorts with their 3D U-shaped pouch and mesh panel at the groin are the more locked-in choice.
Building a riding kit: a simple routine
- For lessons and schooling: long-leg boxer briefs or compression shorts under breeches.
- For a long hack or a show day: compression shorts, plus a fresh pair in your bag for after you untack.
- For quick yard jobs or a short walk-out: whatever you wear every day, as long as the hem stays flat under your jeans or breeches.
- In winter: keep the same smooth base and add warmth on top with thermal breeches rather than a thicker pair of underwear.
Riding a bike as well as a horse? Many of the same rules apply, and our guide to underwear for cycling and long rides goes deeper on leg grip and seam placement.
Frequently asked questions
Should I wear underwear under riding breeches?
Most riders do. A thin, smooth layer stops breeches from rubbing directly against your skin and is far easier to wash after every ride than the breeches themselves.
Are boxers or briefs better for horse riding?
Neither is ideal in its classic form. Loose boxers bunch under breeches, and briefs leave an edge in the grip zone. A long-leg boxer brief or compression short usually works best.
What size should I choose?
Go by your waist measurement and pick the size whose range you fall into. For example, the Long Leg Ice Silk Boxer Briefs list S as 71–79 cm and M as 79–86 cm. A snug fit is good; tight enough to leave marks is too small.
How do I keep riding underwear in good shape?
Wash cold and let synthetic pairs air dry. Heat from a tumble dryer wears out the stretch fibres that keep the hem and waistband in place.
Shop this guide
Find your riding pair
For the most coverage in the saddle, start with our boxer briefs, and look at compression wear if you ride for hours at a time. Our sportswear collection covers everything else in your yard bag. Every order ships in discreet packaging.
