Smartwool Women's Everyday Joviansphere Crew Socks Size:S Stiffer zones just outside you Stiffer zones just outside you feet create a more direct energy transfer to the tip and tail 5 liters 10 liters 19 liters 32 liters 40 liters 54 liters PVC Free Yes Yes Yes Yes Yes Yes Closure Dry Seal dual strip roll down Dry Seal dual strip roll down Dry Seal dual strip roll down Dry Seal dual strip roll down Dry Seal dual strip roll down Dry Seal dual strip roll down Bottom Shape Round Round Round Round Round Round Protection Level waterproof waterproof waterproof waterproof waterproof waterproof Material(s) 1000D 19 oz vinyl coated polyester body Do Not Bleach Versatile durability Comfort welt with 'stay put' fit