The Patagonia Baby Puff Mitts keep baby's hands warm in all manner of snow play. The mittens are made from wind- and water-resistant 100% polyester shell fabric treated with a DWR (durable water repellent) finish to shed moisture. A lightweight layer of 60-g Thermogreen(R) insulation (90% recycled) keeps small hands toasty, and an ultrasoft, high-pile fleece lining wicks moisture and dries quickly. Elasticized cuffs seal out the cold, and the adjustable hook-and-loop closure has a pull-tab for easy on/off.