90% Cotton 10% Nylon Imported MATERIAL:Top layer:90% Nylon 10% Spandex; Bottom:90% cotton 10% Nylon.Contains good elasticity,durability and also good at sweat.The rugged material won’t break easily, and it fits perfectly in every step of the way, protecting your feet at all times. EASY TO WEAR/SIZE:Great socks for flats no show non slip.Design to fit most women and girls.(Shoe Size:US 4-9) (EU 34-40) NON-SLIP DESIGN:NO more slide.Our no show socks has 3 Silicone Strips,silicone sole patch and silicone gel ring inside the top layer on Heel-which keeps the liner socks in place.Prevents slippery all the time while walking,exercising,etc.Low cut liner design makes then almost invisible for most casual/athletic shoes. 100% NO SHOW:These ultra low cut socks almost completely hidden inside for many shoes,look good with shorts or pants.Women no show Socks can be worn with everyday wear and most shoes like ballet shoes,pumps,high-heel shoe,canvas shoes,leather shoes,low-cut sneakers,sketchers,loafers,oxfords,and many others. 100% SATISFACTION GUARANTEE:We are in charge of the quality of our socks and also pay great attention to customers’ satisfaction. If you have any questions about our Non-skid socks, please contact us.we will get you back within 24 hours try our best to give a satisfied reply.100% refund or replacement.just order now.