Gently Used The Toddler Alpenglow II Boots provide versatile winter protection and warmth with Heatseeker™ insulation and a flexible, toddler-friendly construction. 200 G Heatseeker™ Synthetic Insulation Sole Unit: Durable Tpr Shell Bottom And Outsole For Traction And Protection From The Elements Upper: Ballistic-Mesh Upper With Waterproof-Leather Overlays Waterproof, Seam-Sealed Construction