Ergodyne ProFlex 816 Convertible Winter Work Gloves with Flip Top Mitten, Black, Large THERMAL FLEECE Thermal mittens/finger gloves are lined with soft microfleece for maxim comfort, flexibility and protection in cool to cold conditions MITTEN POCKET Flip-top mitten and thumb stow easily when not in use to easily convert from toasty mittens to fingerless gloves for detail work VERSATILE DESIGN Fleece-lined mittens convert to half-finger gloves while offering maximum warmth and dexterity for cold weather detail work, cold storage/refrigeration, construction, service techs and insulation DURABLE MATERIALS Rugged synthetic leather palm maintains flexibility in cold temps; reinforced thumb saddle extends glove life. WRIST CUFF Contoured gathered elastic cuff with ID space can fit over jacket sleeves for convenient easy on/off wear. Snug fit to keep the cuff secure around your wrsit for increased warmth and cold protection Size mentioned in the size chart is based on the measurement around the palm