Cressi Sarago 5mm Neoprene Diving Socks | Black The new Cressi Sarago 5mm Neoprene Dive Socks have been designed for fins with strap or foot pocket and are made of soft highly elastic nylon-lined neoprene 5mm. They prevent heat loss and keep feet warm. Made form quality materials that ensure the perfect combination of warmth, durability and flex. The smooth skin neoprene on the ankle allows maximum adherence between the sock and the leg of the wetsuit, reducing the passage of water. The sole is entirely non-slip for added ease of walking and greater overall safety. The construction of the blind stitch seam further improves comfort and aesthetics. This sock is ideal for free diving, scuba, spearfishing and more. Keeping your feet warm and comfy no matter what water sporting adventure you partake in.