Rugged flexible upper features breathable textured nylon webbing with neoprene backing and sporty open toe design This outdoor athletic sandal offers water resistant construction/moisture wicking neoprene lining to keep you going Lightweight contoured EVA insole ensures cushioning for your feet; moisture resistant washable materials help to withstand extended use Adjustable 2 strap system allows outstanding ventilation for breathability; hook and loop closure/heel pull allow easy on/off Durable multi directional rubber outsole ensures reliable traction/shock absorption over both wet/dry surfaces