Rip Curl Flashbomb 5mm Split Toe Boots were made to withstand the cold water winters, keeping you warmer for more water time. These boots were constructed with Rip Curl's signature Flash Lining technology for warmth and faster dry time, as well as a flexible and textured grip for easy wear. Composition: 80% Neoprene, 20% Polyamide Flash lining E6.