The Obermeyer Toddler Girl's Outer Limits Pants are waterproof and have an extra layer of fleece for keeping warm and are perfect for wearing with base layers. They have critical seam sealing and water-resistant powder cuffs that guarantee all-day comfort. These pants feature Obermeyer's "I-Grow"™ extended wear system that grows with your little one so they can wear them longer the more they grow. They've been constructed with exclusive HydroBlock® Sport 10k waterproof / 10k breathable100% polyester ottoman weave fabric that adds durability and performance. The Obermeyer Toddler Girl's Outer Limits Pants ensure fun in winter and spring.