Rugged flexible upper features printed black nylon webbing with neoprene padded backing/sporty open toe strap design This outdoor open toe athletic water sandal offers water resistant construction/quick drying materials for all day comfort Lightweight contoured EVA insole/padded backing ensure cushioning for your feet Adjustable 2 strap system ensures customized fit/ventilation for breathability; manufacturer recommends that half sizes should order to the next size up Durable multi directional EVA with rubber outsole ensures reliable traction/shock absorption over both wet/dry surfaces