Features: * Remarkable... numerous scientific studies have shown the medical effectiveness of the 500 Natural Rubber Series. The material has a remarkably low 1% to 2% fatigue rate, making the stocking ideal for those with serious indications or long-term therapy. * Unique... manufactured from double-covered elastodien yarn, a yarn made from soft, natural rubber and offering the greatest degree of elasticity while maintaining sustained compression throughout the day. * Easy Wear... made from a porous, extremely permeable, and highly elastic fabric which makes the stocking easy to pull on and off, even in the higher compression categories. * Durable... the knitted fabric is double-covered textured yarn, and therefore retains its shape and is extremely durable. Sold per pair. Available in beige only. Fabric accurately locate your appropriate size. Catalog Numbers: Beige: S1: 503CS1O77 , S2: 503CS2O77 , S3: 503CS3O77 , S4: 503CS4O77 M1: 503CM1O77 , M2: 503CM2O77 , M3: 503CM3O77 , M4: 503CM4O 77 L1: 503CL1O77 , L2: 503CL2O77 , L3: 503CL3O77 , L4: 503CL4O77 X1: 503CX1O77 , X2: 503CX2O77 , X3: 503CX3O77 , X4: 503CX4O77