57% Nylon, 16% Elastane, 14% Combed Cotton, 13% Polyester Imported Machine Wash COMPRESSION FIT: Athletic socks with targeted compression (16-23 mmHg) to improve your circulation, anti-swelling, arch support, hug your feet perfectly and no slipping, no bunching, no blisters UNIQUE SOLE: Design LEFT AND RIGHT SOCKS according to the plantar structure; Combed Cotton and Tech-dry yarns; Cushioned, more soft and comfy, shock absorption MOISTURE CONTROL: The sole contains quick-drying material, feature air-flow channel sweat-wicking technology, keep dry and anti-odor for all-day wear VERSATILE WEAR: Quarter socks pair perfectly with sneakers and boots; High-performance for running, basketball, hiking, golf, tennis, cycling, gym workout, long hours sitting or standing 180-DAY WARRANTY: Lycra for long-lasting elasticity, OEKO-TEX Standard 100 material, skin-friendly, durable; If there is a quality issue within 180 days, please contact CWVLC with your order number and we will provide an acceptable solution