Heat Holders Sloane Feather Knit Mittens for Ladies are created with high-performance thermal yarn, and a luxurious fur-like HeatWeaver insulation lining maximizes the amount of warm air is held close to your body. These striking women's mittens from Heat Holders feature flat-knit construction and ribbed cuffs to help seal in the warmth at your wrists. One size fits most. Shell is made of 55% nylon/45% acrylic. Lining is 100% polyester. Machine wash. Imported. Shell: 55% nylon/45% acrylic Lining: 100% polyester Advanced insulating yarn Fur-like HeatWeaver plush lining Flat-knit construction Ribbed cuff