Gul Power Slipper 3mm Titanium Wetsuit Shoe The Gul 3mm power slipper features a 3mm durable and flexible sole with reinforced toe and ankle areas the hardwearing Nylon front panel and adjustable ankle closure make this slipper ideal for protecting your feet against sharp reef or rocks. Overview BLINDSTITCHED: Seam construction 3MM D-FLEX: Durable neoprene THERMOSPAN: core central heating system. TITANIUM 2: lining reflects the heat back in Elasticated & adjustable ankle cord for secure fit Reinforced heel and toe Durable flexible sole Drain holes