? 32% polyester, 8% cotton, 55% nylon, 5% elastane Size & Color – LARGE (fits men shoe size 7-11) / Medium (fits women shoe size 6-9)??Crew Socks Style?8 colors to suit your personal needs and taste: Cyan/Pink/Rose/Purple Rufuous/Navy/Gray/Black Arch Support & Reflective Strips – Arch elastic provides added support and stability for a perfect fit while your are hiking,running,trekking,jogging or other outdoor sports.Three reflective strips can rise visiblity in low light,put safety first on your way outside in the evening. Blister Resist & Moisture Wicking – Thick towel cushion through the sole of feet can protect your feet from blisters effectively,while providing shock absorption and durability. Honeycomb mesh zone on instep keeps your feet dry and cool, bring you a better experience when you are Hiking, Running, Cycling, Camping, Mountaineering, Basketball Training and other Outdoor Sports. Dedicated Left and Right Socks – There are left and right marks on the toe, thiese marks will prevent the socks from going out of shape easily. The well-placed cushion will provide additional support and comfort in high impact areas 100% Money Back – If you are not satisfied with your purchase, you can return what you bought and get a no-risk full refund. The hiking socks are perfect gifts for birthdays and anniversaries with whom you care about.