UTOBEST Soft Flask TPU, Collapsible Water Bottle Foldable for Hydration Pack, Hiking Cycling Climbing Jogging Marathon, 450ML with straw

Safe: TPU Body, comfortable and environmentally friendly. Taste free, non-toxic, BPA free, SGS and FDA approved, safe for drinking. Lightweight: UTOBEST soft flask, only weigh 56g/60g/63g. The collapsible flask can be folded into smaller sizes when empty, saving space and making it easy to carry, let your running more easily. Easy Drinking: This portable soft flask allows you to hydrate and keep moving, convenient to use, a light squeeze or bite gives ample hydration, without leaking. You can also use it with the straw. Easy Cleaning: This soft flask with wide mouth opening, for easy filling and cleaning. The dust cover can always keep the water fresh. Multi-use: 3 capacity options 350ml/450ml/550ml, to meet the needs of different use, let you run further. Can be used alone or placed in a running vest or hydrating waist bag, and easy to carry.