Hydration Backpack Waterproof Pack Lightweight Reflective Trim Folding Backpack for 2L Water Bladder Running Cycling Climbing Camping Outdoor Pack

Features:
Crafted from nylon, it takes up a mini volume after being folded, portable and convenient.
Lots of storage compartment can carry a 2L water bladder (not included), food, folded umbrella, etc.
The front fabric is waterproof and hard-wearing, and the back mesh fabric is breathable.
Waist pockets carry phones and other items, and zipper mesh pocket is convenient for helmet or raincoat.
It is equipped with survival whistle and reflective trim for safer travel.
Fits for cycling, climbing, camping, hiking and other sports.