Mens Trunks - MicroModal Short Leg Underwear | Debriefs

Men's trunks are close-fitting underwear with a short, square-cut leg. Debriefs trunks have a 5 cm inseam, a 3D contoured pouch and a close fit through the waist and upper thigh. They give you more coverage than traditional briefs, with less fabric down the leg than boxer briefs.

Debriefs trunks have a 5 cm inseam. The short leg sits high on the thigh, making trunks a good choice if you prefer less coverage or do not want extra fabric beneath fitted trousers, suits or shorts.

Choose trunks if you prefer a shorter leg, less thigh coverage and less fabric under fitted clothes. Choose boxer briefs if your thighs rub, you want more upper-thigh coverage or you need underwear for running, training, physical work or long travel days. Both styles use the same MicroModal blend, pouch, fly and waistband construction.

Debriefs trunks are designed to resist ride-up and bunching. The short square-cut leg, reinforced hem and four-way stretch fabric help each leg sit in place without excess material gathering on the thigh. The correct size matters, so the waistband and leg openings should feel close without digging in.

Yes. The 5 cm leg uses less fabric than a boxer brief, so it is less likely to show below a short hem or gather beneath slim trousers. Flat-lock seams create a smoother profile, while the contoured pouch keeps the front supportive without relying on bulky layers.

Debriefs trunks are made from a 230 GSM blend of 94% genuine LENZING MicroModal and 6% elastane. LENZING MicroModal is three times softer than cotton. The finished fabric feels lightweight against the skin while remaining high quality, durable, breathable, moisture-wicking and able to stretch in four directions. The trunks are made in Turkey by a GOTS-certified manufacturer.

Yes. The LENZING MicroModal blend is breathable and absorbs and releases moisture to help the skin feel drier. The short 5 cm leg also means less fabric around the thigh. That makes Debriefs trunks well suited to hot Australian weather, everyday wear and men who tend to sweat.

The horizontal fly opens across the front of the underwear instead of vertically down it. You reach through the opening from above, while the pouch remains supportive around it. It gives direct access and works for both left-handed and right-handed wearers.

The 3D contoured pouch follows the body's shape to give you room and support without flattening everything against the body. It works with the four-way stretch fabric, so the trunks can maintain a close fit while allowing natural movement. The surrounding flat-lock seams sit smoothly against the skin.

Measure around your waist and compare the result with the Debriefs size chart. Use your measurement instead of relying only on the size you wear in another brand. If you fall between two Debriefs sizes, choose the larger size. The waistband should sit flat and the legs should feel secure without digging in. You can also take the Debriefs fit quiz for a personalised recommendation.