Made for comfort, the plushwave 3d boot is like a mattress for your feet. This stylish boot flaunts a water-resistant upper with warm neoprene lining and has a toggle lacing system for easy on/off convenience.. Waterproof with interior seam sealed bootie. Waterproof neoprene bootie. Toggle lacing system for easy on/off. Plushwave 3d cushioning technology inspired by egg crate mattresses provides max comfort. Rubber outsole with adaptive wave-siping technology disperses water to enhance traction