BLUETOP Multi-Functional Bicycle Cycling Rear Seat Rack Trunk Bag Water Resistant Bike Cargo Pack Shoulder Strap Bag Handbag Outdoor Travel Tote Black BIKE RACK BAG: Product size:15.3''L*6''W*6.7''H(L39*W15*H17cm);Capacity:10L; Material:Custom Dacron + PU,constructed from strong and water resistant polyester NICE STRUCTURE: Large capacity can be used to a lot of storage,such as maps, food,tablet, pens, chargers in main compartment;This bag has a water bottle slot included MULTI-FUNCTIONAL USE: This bike rear seat bag can also be used as a regular bag,you can carry it by handle or shoulder belt EASY TO INSTALL: Front and bottom Velcro straps ensure stability and are easy to adjust and install FBA IN STOCK, LOCAL FAST DELIVERY, SERVICE GUARANTEE