Weinbrenner Combo-Crew. Premium quality yarns provide 4-way cross-stretch. Elasticized arch for support and anatomical shape. Medium to high density pads relieve pressure and friction. Extra padding over toes for added safety. High Bulk Acrylic fibers wick moisture for drier, healthier feet. Comfort collar for nin-binding top. Smooth knit padding buffers every step. Content - In Grain Yarns - 100% Color Fast 88% High-bulk Acrylic 8% Stretch Nylon 4% Elastic.