The midsole of the Speed Fusion Web RMX sandals helps you power through even the longest daysit offers just the right combination of support and cushioning. Theyre also delightfully lightweight, even lighter than many running shoes. The materials dry fast, making this a suitable model for sports where your sandals get wet often. - Contains no animal-derived materials - Comfortable microfiber lining - Precise hook-and-loop strap adjustments for an excellent fit - FloatMax cushioning foam in the midsole - Sole structure includes cork - Merrell's high-traction outsole - Heel pull tab made with 60% recycled fiber, elastic strap with 35% recycled fiber, and upper straps entirely made of recycled fiber