Simple Solid Color Marathon Hydration Backpack Sports Vest

Product information:
Pattern: solid color
Lining texture: Polyester
Applicable sports: mountaineering, hiking, cycling
Applicable scenario: outdoor sports
Color: Granny Grey, Black
Applicable gender: neutral/both men and women
Function: breathable, ultra-light, can be stored
Material: Nylon
Bearing system: Curved shoulder strap
Style: leisure travel
Capacity: 21 × 7 × 38cm