S: Suitable for palm 7-8cm M: Suitable for palm 8-9cm L: Suitable for palm 9-10cm XL: Suitable for palm 10-11cm Warm Polar Fleece and Insulated 3M Thinsulate Fabric Convertible Between Gloves and Mittens - With the finger hoods down, you get fingerless gloves, sensitive for touching screen of smartphone and flexible for typing on PC. With the finger hoods up, you get warmer mittens for keeping warm in cold outdoors. 3M Thinsulate Insulation - The warm gloves, lined with insulated Thinsulate fabric, provide wonderful inner thermal preservation, efficiently keep your hands heat inside and cold wind outside in winter outdoor sports like cycling and ski, no more frozen hands, just enjoy your winter fun. Windproof and Lightweight Polar Fleece Shell - The light fleece gloves are specially processed for better wind resistance to keep your hands warm and flexible while driving, cycling, skiing. Ideal gift choice - easy to match these gloves in classic color black with various women's beautiful winter outfits, which makes them an ideal gift for your female family and friends in cold days and winter festivals such as Christmas.