OMNI-GRIP: This multi-terrain traction system matches specially formulated compounds and treads to specific environments. COMFORT STRAPS: This Fish Flip PFG sandal features comfortable rubber straps to keep your feet secure no matter the activity. MATERIAL: A PU coated leather upper and a non-marking wet traction rubber outsole make this sandal durable and comfortable from wet rocks to boat decks. HIGH-TRACTION GRIP: Our signature high-traction grip helps prevent slipping on wet and dry surfaces. ADVANCED TECHNOLOGY: Columbia Men's Fish Flip PFG Sandal features our signature Techlite footbed and frame for superior cushioning and impact absorption.