Xtratuf Bama Sokket Insulating Removable Boot Liners - Men's Blue 10. These removable boot liners feature a blend of acrylic and cotton tricot fibers that wick away perspiration to keep your feet comfortable in tough work conditions. Bama Sokket boot liners also insulate your feet from cold weather environments in winter seasons or northern climates. Specifications for Xtratuf Bama Sokket Insulating Removable Boot Liners - Men's: Manufacturer: Xtratuf Gender: Male Age Group: Adults Men's Shoe Width: Medium Color: Blue Activity: Outdoor Fabric/Material: Acrylic fiber/Cotton tricot Features of Xtratuf Bama Sokket Insulating Removable Boot Liners - Men's Acrylic fiber and cotton tricot blend wicks away perspiration. Adds an extra layer of warmth and insulation to your boots. Boot liners are removable for all-season comfort. Wear one size smaller than your boot size for the best fit. Package Contents: Xtratuf Bama Sokket Insulating Removable Boot Liners - Mens Xtratuf 28500-BUM-100: Bama Sokket Insulating Removable Boot Liners - Men's Blue 10