Olukai Kalapu Sandal Black/Black NWOT -Non-marking rubber outsole with textured pods for enhanced traction and durability. -Anatomical poured PU footbed with micro-texture for traction and a lower profile for a modern and clean look and feel. -Built into the outside surface of the sidewall instead of the footbed, our unique Outboard Strap Construction offers a free yet secure fit for the most comfortable arch support possible. -Our vegan friendly footwear offers the durability, traction and support you expect from OluKai while using 100% high-quality synthetic materials, 0% animal products.