Heathered, not flat.

Melange yarn is spun from two shades of fibre before it is knitted, which gives the finished fabric its soft, mottled look. It is a knitting technique rather than a different material — our melange styles use the same bamboo viscose blend as the rest of the range.

They are made from high-quality, organically grown Bamboo Viscose. This material is incredibly soft, breathable, and moisture-wicking, keeping you cool and dry all day long.

The Boxer Brief has a 6" inseam and the Trunk has a 4" inseam. Both use the same 3D Comfort Pouch and Ultraglyde™ panels, so it comes down to how much leg coverage you prefer.

The Ultraglyde™ panels are friction-resistant panels on the inner thighs that prevent chafing and stop the legs from riding up. They ensure your legs glide past each other rather than rubbing.

We are so confident you'll love your first pair of Step One underwear that if you don't, you can keep them and we'll give you a full refund. No questions asked. This applies to your first single pair purchase.

Machine wash cold with like colours. Tumble dry low or line dry in the shade. Do not bleach, iron, or dry clean, to maintain the quality of the bamboo fabric.