A waterproof rubber shell is laminated to a ~4.5 mm neoprene body for a flexible, fully sealed upper (avoid prolonged submersion above the collar). The low-cut slip-on design features front and heel webbing loops for easy entry, plus a heel kick rim for hands-free removal. A reinforced toe shell and wrapped heel add durability and shape. The deck-friendly, non-marking outsole uses fine siping and multi-directional herringbone to shed water and grip on wet fiberglass and docks, while the cushioned footbed keeps you comfortable all day.