Nike Slim Running Waistpack 3.0 - Black/Silver Size:One size fits all it has 3 power levels

it has 3 power levels of vibration therapy that allows the user to have a deep tissue massage whenever it's required

Up to 9 days battery life in smartwatch mode

without compromising one or the other

Thumbholes for extra coverage

Nike Slim Running Waistpack 3.0 - Black/Silver Size:One size fits all it has 3 power levelsThe Nike Slim Running Waistpack 3. 0 allows you to keep your cards, keys, cash and any other small essential items with you on your run, without creating an uncomfortable bulk. It is made from stretch nylon mesh and has a bonded zipper that offers breathable and secure storage. Features A contoured, lightweight design is made to move with you with less bouncing. The adjustable belt has a single button closure that's super easy to put on and take off.