The Rounderbum Essentials Trunk is a men's mid-inseam trunk made from ultra-soft modal with plenty of stretch. Rounderbum calls the mid-inseam trunk men's favourite cut and says it molds closely to the body. The modal is made from beechwood fibre, which the brand rates as twice as soft as cotton. It also says the fabric holds its shape for longer than cotton. Leg stitching is placed to improve the fit and to stop the hems rolling up or bunching. Up front, contour seams shape a rounded pouch, and the seat gives full coverage. The exclusive Rounderwear waistband is tonal, with a thin contrast stripe along the top edge. Twelve colours run from black and navy to green, lilac, army green and teal. Wear the Rounderbum Essentials Trunk every day, under work trousers or weekend denim. Explore more men's trunk underwear or the full Rounderbum lineup at Underwear Expert. Key Features Fit: Mid-length leg with full seat coverage. Rounderbum describes an ultra stretch fit that molds to the body. Sizes run Small to X-Large. Feel: Ultra-soft modal that the brand says is amazing to the touch. It feels smooth and silky against the skin. Pouch: Contour seams curve around the front to build a rounded, defined pouch. The leg stitching keeps the shape neat. Waistband: Exclusive Rounderwear waistband in a tone that matches the fabric. A thin contrast stripe runs along the top edge.