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 chart STYX - MEN BOXERS / BRIEFS WAIST CIRCUMFERENCE SIZE (CM) UNSTRETCHED CONDITION (CM) S 70-80 34.5 M 80-90 36 L 90-100 37.5 XL 100-110 40 XXL 110-120 42 3XL 120-130 45.5 4XL 130-140 47 5XL 140-150 49.5