The Youth Altitude Lite II WP is a breathable, lightweight kids' boot that also doesn't compromise on style. It features Hi-Tec’s own Big-Fit System, which allows your children’s feet room to grow so that the shoes last longer. This boot also includes Dri-Tec, a waterproof technology to keep your feet dry and comfortable even in the wettest environments. The M-D Traction rubber outsole improves grip and provides durability in all conditions creating one tough and reliable boot. Great for those little adventurers. Dri-Tec Waterproofing - Gives a superior waterproofing and excellent vapour transmission to keep your feet dry and comfortable even in the wettest environments. i-Shield - Creted by Hi-Tec, i-shield is an invisible protective layer that repels water and dirt with ease. MDT Outsoles - Designed to deliver the perfect balance of traction, protection and durability. The chamfered lugs allow dirt to be released quickly, improving traction on we and other types of terrain. Forward lugs are angled to encourage propulsion whilst rear lugs are angled to encourage breaking. Lugs are opened up in flex points to allow better flex and reduce foot fatigue. Big-Fit System - Ever wish shoes would grow with your kids? Hi-Tec's Big-Fit system does, with its two insoles, one to cushion and one that can be removed as feet grow. When new, both insoles keep their little feet secure and cushioned.