Zipper: #5 Coil zip with auto-lock zipper

From sunrise to sunset

Bladder: 100% TPU

CONTENTS: 92% Polyester / 8% Spandex

The tumbler lid features tri-mode flow control

AQURUN Men's Skme Edge - Blue Color:BLUE Zipper: #5 Coil zip withExperience 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