Dadypet Jogging Backpack with 1.5L Water Bladder, Lightweight and Breathable for Running and

hydration backpack aligns your back while gently protecting your muscles. ventilated mesh cover maintains air circulation, preventing discomfort from accumulated heat. Experience excellent breathability during your activities.

Features:
Mesh shoulder straps for maximum breathability and comfort.
Made from tear-resistant and waterproof nylon fabric for extremely light weight and durability.
elastic front pocket and zippered pocket on shoulder strap keep your essentials like cell phone and energy close at hand. 
Reflective strips increase visibility and safety.
Specially designed for road cycling, running, hiking, and more, compact and stable construction minimizes wind resistance. 

Specifications:
Material: 90% nylon + 10% spandex
Color: Black and Blue/ Black and White/ Light Grey and Dark Blue/ Light Grey and Orange (optional)
Capacity: 5L
Size: 35*18cm/ 13.8*7.1in
Weight: 140g/ 4.9oz

Package List:
1 * Hydration Vest Backpack
1 * Water Bladder