The Mystic Marshall 3mm Split Toe Shoe is a neoprene shoe that extends to the ankle. Ideal for warmer conditions where you still want to protect your feet.The Marshall 3mm Split Toe Shoe has a thick, volcanic rubber sole on the bottom. This material is very stiff and makes it suitable for walking on reefs, stones and shells. There is an elastic cord at the ankle that allows you to tighten or loosen the shoe around your foot. At the instep you have a Velcro system that allows you to pull the shoe tightly around the instep.In addition to protection, the Marshall also provides some form of warmth. The inside is lined and the flexible 3mm neoprene provides good insulation.Velcro closure system at the instepNot suitable for cold temperatures