For rowing, whether on the water or on an indoor rowing machine, the best underwear is a snug, short-leg boxer brief or a close-fitting sport brief in a quick-drying stretch fabric, with flat seams and a waistband that will not fold when you compress at the catch. Pair it with fitted shorts or tights, not loose ones, so nothing snags on the sliding seat.
Why rowing is hard on underwear
Rowing looks smooth, but every stroke puts your underwear through a full range of motion. At the catch your knees come up to your chest and your hips fold as far as they go. On the drive your legs push flat while your seat rolls backwards. At the finish you lean back with the handle at your lower ribs. Repeat that a few thousand times in a session and small problems become big ones.
- Constant friction under you: you sit on a hard, moulded seat that slides back and forth, so any thick seam under the sit bones gets pressed into you with every stroke.
- Deep hip flexion: loose fabric bunches in the hip crease at the catch, and long leg openings can roll up.
- Sweat and splash: indoor sessions get hot fast, and on the water you will catch spray or rain. Fabric that stays wet feels heavy and cold.
- Moving parts: the seat runs on wheels along a rail. Loose shorts or a baggy top can catch on the slide or under your thumbs at the finish.
The cut: short leg, snug fit
For most rowers a short-leg boxer brief is the sweet spot. It covers the inner thigh enough to stop skin rubbing against the seat edge, yet the leg is short enough not to bunch when your knees come right up. A snug trunk cut also stays where it is when your hips move through that big range, which matters more here than in almost any other gym session.
If you prefer less fabric, a close-fitting sport brief works too, especially under tights. What tends not to work is a loose boxer short (the fabric collects in the hip crease) or a very long-leg cut under loose shorts, which can roll up at the thigh. If you are unsure which leg length suits you, our guide to boxer brief leg lengths walks through the options.
Fabric: what dries fastest on the erg and the river
Rowing is a sweat-heavy sport, and outdoor rowers add water from the blades and the weather. Choose a fabric that moves moisture and dries quickly rather than one that soaks it up and holds it.
| Fabric | How it feels mid-session | Best for |
|---|---|---|
| Polyester-spandex | Slick, light, dries quickly | Hard erg pieces, outings on the water |
| Mesh | Maximum airflow, very light | Warm gyms, indoor intervals |
| Ice silk / silky blends | Smooth and cool against the skin | Steady-state sessions, long low-intensity rows |
| Cotton-spandex | Soft and familiar, but holds moisture longer | Short technique sessions, warm-ups, the walk home |
Our Moisture-Wicking Compression Boxer Briefs are a good example of the first row: they are made from 90.8% polyester and 9.2% spandex, have a contoured pouch, a wide elastic waistband and a tagless build, and come in five colours from S to XXL. The Mesh Boxer Briefs sit in the second row, with all-over mesh, a low-rise short-leg cut and twelve colours.
Waistband and seams: the details that decide a long row
At the catch your stomach and thighs come together, so a thin waistband can fold over or roll down. A wider, firmer band holds its line much better. Check where the seams sit too: you want the back of the garment smooth across the seat, with no bulky label or thick join directly under the sit bones.
- Look for a wide elastic waistband rather than a narrow one.
- Choose tagless designs so nothing scratches at the lower back as you lean away at the finish.
- A contoured pouch keeps things settled when your legs drive flat and your hips open.
- Try a test row at home: ten strokes with full compression will tell you more than standing in front of a mirror.
What to wear over your underwear
The outer layer matters as much as the base. The rule for rowing is simple: keep everything close to the body.
- Shorts: fitted shorts with a short inseam keep fabric away from the seat wheels and do not drape over the rail. Our Cotton Running Shorts are 100% cotton with a 5-inch (about 13 cm) length that sits above the knee, plus three zip pockets that keep keys secure on the way to the boathouse or gym. They suit warm-ups and lighter sessions; for hard pieces many rowers prefer tights or compression shorts.
- Top: a fitted shirt or vest stops the handle catching fabric at the finish. The Short-Sleeve Compression Undershirt uses a four-way stretch mesh and comes in black or white, so it can sit under a training top or be worn on its own indoors.
- Layers for the water: on cold mornings, add a close-fitting long-sleeve layer you can peel off once you are warm, and leave baggy hoodies in the boathouse.
For more on how compression pieces compare with standard underwear in training, see compression shorts vs boxer briefs.
Indoor rowing machine vs on the water
The motion is the same, but the conditions are not. On the rowing machine the room is warm, there is no breeze and sessions are often short and intense, so breathability comes first: mesh or a slick polyester-spandex boxer brief is ideal. On the water you deal with spray, wind and wet seats, so quick drying and warmth matter more, and a snug compression-style boxer brief under tights is the safer choice. If you do both, keep one pair of each type in your kit bag.
After a session, change out of damp underwear as soon as you can. Wash sports underwear cold and let it air dry, which helps stretch fabrics keep their shape and fit for longer.
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Frequently asked questions
Is it OK to row in boxer shorts?
Loose boxer shorts usually bunch at the hip crease during the catch and can rub against the seat. A snug boxer brief or sport brief stays flatter and is far more comfortable over a long session.
Should I wear compression underwear for rowing?
Many rowers like a snug compression-style boxer brief because it stays in place through the full stroke and dries quickly. It is a matter of preference: a regular close-fitting boxer brief in a quick-drying fabric works well too.
What leg length is best for the rowing machine?
A short to medium leg is the most practical. It protects the inner thigh from the seat edge without collecting fabric when your knees come up to your chest.
Can I wear cotton underwear for rowing?
Cotton is fine for short or gentle sessions, but it holds sweat longer than synthetic blends. For long rows, hard intervals or wet days on the water, a polyester-spandex, mesh or silky fabric dries faster.
Ready for your next session?
Whether you are logging metres on the rowing machine or heading out on the water at dawn, a snug, quick-drying pair makes every stroke easier to focus on. Browse our sportswear collection, or see our compression wear and boxer briefs to build your rowing kit. Every order ships in discreet packaging.
