Unisex OOriginal Thong Sandal (Slate) Size:M 13 the FlipBelt Zipper stays securely

the FlipBelt Zipper stays securely in place without bouncing or shifting

& Blue LED options

if you accidentally do get swole

it shrinks as you drink to minimize water movement and it can be used with or without the tube

It's in the name

Unisex OOriginal Thong Sandal (Slate) Size:M 13 the FlipBelt Zipper stays securelyThe OOriginal sandal features revolutionary OOfoam technology that absorbs 37% more impact than traditional footwear foam materials to reduce the stress on your feet and joints. This technology aids in the recovery process and creates an incredibly comfortable sandal you can wear anywhere. Reduces stress on sore feet, knees, and back Enables more natural motion Minimalist construction for light weight Machine washable OOFOS are made in whole sizes. We