Under Armour Performance Boxer Briefs deliver moisture-wicking performance and a flexible, snug fit for comfortable all-day wear. Ideal for active days and warm weather, they focus on dryness and mobility. Key attributes: White | Polyester | Moisture-wicking fabric | Boxer brief style | Dimensions & fit: Snug and flexible fit | Composition & care: 98% polyester | 2% elastane | Machine wash at 30°.