The tumbler lid features tri-mode flow control

From sunrise to sunset

Zipper: #5 Coil zip with auto-lock zipper

Outsole: thermorubber

Bladder: 100% TPU

AQURUN Men's Skme Edge - Blue Color:BLUE The tumbler lid features tri-modeExperience wearing AQURUN Aqua Shoes. With a water drainage system in TPR outsole,sand and water are not collected inside the shoe. The shoe skin is made of Spandex, a lightweight fiber. The stretchable spandex protects the skin of the feet. Goes well with a variety of sports. Features Promotes healthy walking and trains the foot and lower leg muscles Feel the training benefits with every step you take Feels more like a second skin than a shoe