Made of 600D polyester, the whole bag is filled with PE pad, which is strong, durable and beautiful in appearance Multifunctional: It can be used as a shoulder bag or handbag, the elastic band on the top can fix water bottle, map or rain cover, etc. High capacity: 13L (4 gallons) capacity, can store leisure necessities, books, tablets, mobile phones, clothes, bicycle tools and accessories Well-structured design: double U-shaped zipper, main compartment, 2 side pockets and back pocket Enhanced safety: reflective signs on both sides, omnidirectional reflector tube and reflector strip with tail light ring 13L capacity, suitable for long and short distance riding With reflective strip and taillight hook design(taillight not included) Installation via fastener strap, quick release, and installation Specification: Product material: polyester 600D, PE foam pad, polyester lining Structure: 1 main compartment, 2 side pockets and 1 back pocket Purpose: tote bag, shoulder bag, install on bicycle Product size: 40*16*21cm Product net weight: 449g Package included: 1 x Bike Rear Bag Others Not Included