12L Outdoor Sport Bike Cycling Running Hiking Hydration Water Bag Storage Helmet Pack Waterproof UltraLight Bladder BackpackSPECIFICATIONS Brand Name: HARKO Origin: Mainland China Certification: CE Function: Rainproof is_customized: Yes Material: nylon Suitable for sports: Cycling,climbing,hiking,skiing,running,marathon,jogging, etc About backpack and water bag This product is backpack, water bag is accessories. Backpacks don't contain water bags.

allowing air to circulate inside the bag without odor

Takes just seconds to assemble or break down

7") in size

can be used as office ball chair to improve your posture & relieve back pain

Material: shell PC

Feature 1: sonar fish finder

Features: warm and comfortable

Thickness: 6''/ 15cm

For: 100/135mm road bike hub

Advantage: Better for wateproof

AR double-layer optical coating

Product specifications1