These kids' mittens are a top seller at Lamey Wellehan. They feature the patented SnowStopper extra-long cuff to keep the snow out and also have 40 g Thinsulate insulation to help keep hands warm. The extended sleeve on the mitten fits underneath the coat to keep the snow out and the mittens on! In addition, they have a waterproof Drypel liner to keep their hands dry. If unsure of your child's size, we suggest getting the next size up. Small for ages 1-3, medium for ages 2-5, large ages 5-8 and extra-large ages 7-12.