Flip Belt Zipper - Black Garment Size:XL the watch uses heart rate

the watch uses heart rate to provide calories burned

14% COOLMAX® polyester

the cooling has been optimized with a more powerful cooler that lets the lamp produce up to 550 lumen (depending on battery type) while keeping its comfort and low weight

Expect a stable and protective ride that helps you land with certainty and push off with ease

Allowing you to leave your phone behind

Flip Belt Zipper - Black Garment Size:XL the watch uses heart rateFlipBelt Zipper is also wider to accommodate passports while traveling and extra large phones, such as the iPhone 6 Plus and Samsung Note 5. The FlipBelt is easy to use, comfortable and carries everything you might need while traveling or exercising including your phone, keys, ID, cards, cash, medical devices and more. Simply step into the FlipBelt like a pair of pants, place it in a comfort position on your hips, and forget that youre wearing it.