The Ok mittens are designed for optimum performance in colder climates. The mittens offer great breathability and keep the hands warm with down insulation and Polartec® Power Stretch® Pro in palms. The insulation tunnels are woven in the fabric and therefore no stitching. Women's sizes. Care: Wash separately. Machine wash (30°C). Use liquid detergent specially for down. No bleach. Tumble dry at low heat setting. Fabric Polartec® Power stretch® Pro 53% polyester, 38%Nylon & 9% spandex/elastane. Fabric 2: 31% Nylon, 52% Polyester, 17% Lycra. Insulation: 90% duck down & 10 % feathers.