McKinley Children's Trekking Boots with Aquabase Waterproof Membrane The McKinley Walking Boot Aquabase Children's Trekking Boots are ideal for hiking on mountain trails. Ankle boots will overcome even difficult mountain conditions, thanks to the high arch that stabilizes the ankle. They are made of quality materials with a waterproof and windproof Aquabase membrane in combination with a breathable upper. The non-slip sole is resistant to abrasion. The practical Quicklace quick lacing system ensures not only easy and quick tying, but also perfect adhesion of the foot to the shoe. The integrated soft tongue protects against leaves, small stones or water falling inside the shoe. The reinforced toe and heel protect against external impacts and ensure all-day comfort and convenience. With these shoes, you don't have to worry about foot pain even after a day's hike. In addition, the shoes have reflective elements that improve visibility. Material: rubber, EVA, synthetics, textile Sizes 28 to 34 have a fixed bungee lace (rubber, cannot be adjusted) and velcro as a lacing system. Sizes 35 to 39 have an elastic quick lacing system without Velcro.