Underwear

Choose underwear built with moisture-wicking, quick-dry fabric rather than cotton, which holds sweat and increases chafing risk on long routes. ThruDark's Shadow Boxer Sport 3Pk uses a mesh-knit polyester construction with 11% elastane for stretch and breathability, while the Shadow Boxer Active 3Pk offers a lighter, moisture-wicking polyester build with 10% elastane. Both dry fast and move with you across a full day on the trail.

For hot-weather hikes, prioritise breathability and quick drying: the Shadow Boxer Sport 3Pk's mesh-knit polyester construction and 11% elastane keep you cool and dry through high-output miles. In cold weather, focus on next-to-skin comfort and stretch rather than pure cooling; the Shadow Boxer Active 3Pk's lightweight moisture-wicking polyester still clears sweat before it chills you, while the Shadow Boxer Cotton 3Pk offers a softer, less technical option for milder, low-output days.

Everyday underwear, like the Shadow Boxer Cotton 3Pk, is built from soft, breathable cotton with 5% elastane for comfort during low-output days. Technical hiking underwear, such as the Shadow Boxer Active 3Pk and Shadow Boxer Sport 3Pk, swaps cotton for moisture-wicking polyester with 10-11% elastane, drawing sweat away from the skin and drying fast to reduce chafing on longer, more demanding routes.