As your kids develop advanced puddle-jumping techniques, they should have state-of- the-art equipment. The technical term is Rain Boot. 100% Waterproof. DuraFresh natural bio-technology activates to fight odors. Bogs Max-Wick evaporates sweat to keep feet dry. Lightweight construction. Easy on handles. Crafted with ultra-soft and flexible rubber. BLOOM, algae-based EVA footbed that helps clean polluted water habitats. Rubber outsole. Please be advised that a white wax film may appear on the surface of the rubber boots and the brand states that it can be wiped off with a damp cloth. This "blooming" effect is not a defect. Blooming is caused when the boots are exposed to extreme temperatures or temperature swings and the wax helps prevent the rubber from weathering.