The Cotopaxi down mittens are like mini sleeping bags for your hands - though the lining is more comfortable than typical sleeping bag fabrics, as it's made from fleece. The down creates a generous insulating layer and allows the mittens to be packed into a small space. The outer fabric is the familiar 20-denier ripstop nylon found in many outdoor gear items. - Clips allow the mittens to be attached to each other - The palm and thumb feature durable, highly grippy material, while the back of the hand is made of lightweight ripstop from recycled fibers - Elastic wrist cuff - Responsibly sourced down filling - Lining fleece is made from recycled fibers Cotopaxi's partner factories are Fair Trade certified and committed to principles such as the UN Global Compact and Principles of Responsible Business, as well as the Ethical Trading Initiative's Better Buying Guide.