Select Size to see the return policy for the item.Cotton,Spandex,Mesh,Nylon.MATERIALTop layer:80% Nylon 20% Spandex Bottom:95% cotton 5% Nylon High quality material: they are ultra-soft and smooth. Invisible socks with super soft comfort feeling with great ability to soak up sweat. Keep dry all day.SIZE: 2 Size design to fit most women so you don't worry about the size. US 5-8 :US 9-11 : .ANTI SLIP & LOW CUT: Silicone gel circle to keep them firmly on your instep and heel grip, will not fall off the feet Low cut Shoe Shape Unique Design keep invisible.BREATHABLE MESH: The socks bottom are made of cotton with a breathable nylon fabric covering toes and non-skid silicone patches at bottom, which make your feet stay dry and fresh all day.100% NO SHOW: JARSEEN no show liners stop pretty close to the toe line, just covering the end of your toes.Elastic comfortable socks perfect for ballet shoes, pumps, high-heel shoe, sneakers, Flat shoe, Boat Shoes, Loafers, ect.