Built for snow play, the Bowstring winter boots feature Helly Tech® Waterproof technology. They’re insulated with warm 200 gram PrimaLoft® to keep your feet cozy and warm. The soles have maximum grip for traction on slippery surfaces. Velcro® Brand closures enable easy on and off. A warm and versatile insulated boot for kids. The JK Bowstring is an ultra-functional mid-calf boot for kids with Primaloft® insulation. It features a HELLY TECH® waterproof membrane, warm Primaloft® insulation and a hook-and-loop closure for easy on and off. It combines a hydrophobic textile and synthetic leather upper with a cushioned midsole and a rugged outsole. Upper: Helly Tech® Performance Waterproof Membrane, Waterproof Seams, Breathable Textile, Seamless Construction, Protective Synthetic Leather, Padded Textile Strap, Primaloft® Insulation 200g/m². Midsole: High-End EVA, EV Insole. Outsole: HellyGrip Sole.