Boy's Fleece Fingerless Convertible Mittens Winter Gloves HOW DO THESE KIDS WINTER GLOVES FIT? These kids ski gloves fit true to size for ages 4-16, but are not limited to this age group. These gloves come in 2 different sizes based on the users age. The 4-7 size has an interior palm circumference of 7.5", and the 8-16 size has an interior palm circumference size of 8" This amount of room transforms this snow glove for kids and for young adults whose hands still fit within the 4 w x 9 l area. HOW ARE THESE MITTENS CONVERTIBLE? These gloves have a foldable flap mitten that allows you to protect your fingers when its cold, or let them breathe when they need to. On the backside of the palm there is a Velcro patch which connects to the back side of the mitten attachment to ensure the flap stays back when you are letting you hand breath while you are wearing these as gloves ARE THESE KIDS CONVERTIBLE MITTENS WATERPROOF? No these gloves are 100% knitted polyester, and designed to be worn for warmth rather than protection snow / rain. These gloves are designed for easy transition from warmth to breathable which is ideal for the bike rides, hikes, and other waterless activities. HOW DO YOU WASH / CARE FOR THESE WATEPROOF MITTENS? While hand washing is ideal, its not always practical. These baby mittens can go in the wash machine on delicate, and be partially dried on delicate. We recommend NOT drying them fully and allow them to partially air dry. The exterior of the glove and the filling are all 100% Polyester. WHAT OTHER FEATURES DO THESE CONVERTIBLE MITTENS HAVE? The opening of these mittens features a gathered elastic band to keep snow and cold weather out, while keeping your childs hands warm and dry. Rubber Tech grip can be found on the palm allowing for a sturdier construction and a better grip when handling items. Additionally, the exterior of the mittens features a hook / slot function to connect the two mittens so you dont start following season with only one mitten!