These Socks Are Designed with Footprint Shape Silicon Grippers on the Bottom, Sticky & Non-slip, Provided with Cushion Effect & Shock Absorption for Your Feet When You Are Exercising, Ankle Length with Elastic Ribbed Cuffs to Keep Socks in Place & Protect Your Ankles, Seamless Toe & Heel Design Prevent Your Feet From Hurt & Blisters, Offer Your Feet with Arch Support. the Non Slip Socks Are Suitable for Yoga, Pilates, Barre, Workout & Other Indoor Sports; in Addition, the Elderly, Hospital Patients & Pregnant Ladies Are Also Proper to Use Non Slip Socks. These Socks Made of 82% Cotton, 16% Polyester & 2% Elastane. One Size Fit Most, Our Socks Are Made of High-stretch Cotton Material That Provides an Excellent Fit. Stretchy, Soft & Breathable.