OluKai Women's U'i Sandal is a braided palm frond inspired design, comfortable hand-sewn leather toe post construction. Outsole is a non-marking rubber outsole designed with a flowing seaweed pattern for both traction and durability. Footbed is a molded high-character leather footbed that ages beautifully over time, layered over a patent-pending footbed featuring soft ICEVA for maximum cushioning, and a contoured plate for long lasting comfort and stability. Non-Marking Rubber, OluKai's thermoset rubber is a compound of natural and synthetic rubber that will not leave marks or ‘scuffs’ on surfaces of any type. OluKai's gum rubber outsoles, as a natural material, will always naturally be non-marking. Sizes and colors available as displayed.