CTSMART 1701 Multi-function 15L Outdoor Cycling Hiking Backpack with Whistle - Black

Made of top waterproof nylon, durable, anti-scratch and lightweight 

Breathable and soft pad in back and straps, more comfortable for you to carry heavy stuff

Multi-pockets design, special compartment, convenient for classifying different items

Ergonomic design, reducing the pressure of shoulder

It can accommodate water bottle on the side net bag

Whistle is on the buckle of the back, suitable for wild survival

15L large capacity and 18kg load-carrying capacity

Shoulder strap adjustment range: 45 - 80cm

Fit for hiking, cycling, camping, etc.