Men's sandals 4F M051 black 4FRSS24FSANM051 21S Men's sandals 4F with open construction guarantee comfort and adequate air flow during summer activities. Open heel. Soft EVA foam insole for better cushioning. Triple velcro closure makes it easy to put on and remove the shoes. Upper made of synthetic material from rubber reinforcements. Soft rubber sole with deep tread ensures durability and good adhesion to the ground. Composition uppers:95% polyurethane, 4% TPU, 1% polyesterComposition sole: 80% EVA, 20% rubberLining: 100% polyester