Material: Neoprene. Color: Black;Thickness: 3mm; perfect for men and women!nSkin-friendly Material and Close-fitting Design offering comfortable and durable wearing experience.nEasy buckle for waterproof diving,helping you adjust the water boots easily.nPerfect for snorkeling,diving,walking along the beach,protect your feet from cut,puncture,scratch,and cold water.nHealthy barefoot walking and hard to be come off in the water, very suitable for divers and body surfers. (Machine Wash is Not supported)n