Men's STYX Functional Boxer Shorts The STYX Men's Functional Boxer Shorts are made and adapted for comfortable wearing in both cut and material. The fabric is treated with silver and COOLMAX active technology, so it is breathable and antibacterial. The wide woven rubber does not press or bite. These functional boxer shorts have extended leg loops, which are important for comfort during sports, as the leg loops do not roll up to the upper groin area. Size chartSTYX MEN BOXERS / BRIEFS WAIST CIRCUMFERENCE SIZE (CM) UNSTRETCHED CONDITION (CM) S 7080 34.5 M 8090 36 L 90100 37.5 XL 100110 40 XXL 110120 42 3XL 120130 45.5 4XL 130140 47 5XL 140150 49.5