This is not your everyday slide, the Apres Fish is non-marking and has an Src rated slip-resistant outsole, gripping the deck or floor s surface for sure footing. The Apres Fish Slide features the Xtratuf logo across the top and is a one-piece, lightweight sandal built from an innovative eco-conscious material called Biolite. Biolite is a low compression high performance Eva foam that delivers superior impact absorption and support. It has been granted a Green Leaf certificate by Intertek, an accredited independent 3rd party testing facility, verifying that this product will properly biodegrade in bioreactor landfills. So, you can feel as good about wearing them as your feet will in them after a long day on the water..