Premium quality yarn provides 4 way cross stretch for perfect fit. Elasticized arch for support and anatomical shape. Medium to high density pads receive pressure and friction for superior protection. Extra padding over toes for added safety. "High Bulk" acrylic fibers wick moisture away for drier, healthier feet. Comfort collar for non-binding top for maximum comfort. Smooth knit padding buffers every step. "Buried" toe seam for a seamless foot.