Billabongs Dunes Impact Flip Flops have a mock suede upper strap with SBR padding, a sonic welded wave logo on the upper and a non-slip outsole with a wave pattern. Product Information: • Product Code: S5FF21S21-21 • Sonic welded wave logo on upper • Dunes inspired moulded footbed • Wave logo print on heel of footbed • Non-slip outsole billabong wave logo pattern • Webbing toe strap • Water resistant • Made with Bloom foam • 70% EVA, 10% Rubber, 10% PU, 10% PES