NON-SLIP : The yoga socks with silicon bottom & heel, increase balance and stability, non slip, good grip, great for fitness, dance, yoga, pilates, barre, ballet, bikram, gym, for women size 3-8. . ELASTIC CROSS STRAP : Anti-skid yoga socks have elastic cross straps with thick plush lining, and silicon heel to prevent socks running off in the fitness process, perfect experience. . Cotton . Machine Wash . COTTON : Cotton yoga socks are sweat-absorbent and machine washable, soft and comfortable. . GOOD QUALITY : Thickened bottom fabric, better protect your feet. More soft and comfortable . Satisfaction Guarantee : We stand by our high-quality products and your satisfaction is guranteed. If you encounter any product problems, please contact us directly, we will do everything possible to solve your problem quickly and effectively. .