Grundens Deck Boss Slip Ons feature a thermoregulated, anti-microbial cooling liner. These are 100% waterproof slip on shoes that are easy to get on and off. Providing all day protection from the elements, keeping your feet cool and comfortable. These slip on shoes provide comfort and ergonomics while on deck. Keep your feet planted for that catch of a lifetime.Siped gum rubber outsoleAll-day comfort foot bed100% waterproof with reinforced pull loopAnti-microbial, temperature regulating liner