The Trollkids Hafjell Winter snow boots for children feature reflective elements at the front and back, allowing you to quickly spot your kids after skiing outings. Additionally, these winter boots are waterproof and breathable, providing optimal comfort for your children when walking back home! Fabric: Upper: PU/Polyamide Lining: Fleece (100% polyester) Insole: Fleece (100% polyester) EVA Outsole: TPR. Trollkids Hafjell Winter Boots - Snow boots - Kid's | Hardloop