3-in-1 multifunctional bike travel bag! Can prepare you for your daily commute or weekend adventures by making sure you have everything you need for your trip. When you want to keep your tools handy without carrying them, this capable carry bag is just the thing for long rides. Strap it to your road or mountain bike and enjoy quick access to everything you need on your ride. 4 D-ring buckles, 6 butt easy locking buckles for linking the rear frame bag to 2 side bags.2 side bag hooks quick release system, won't worry about this bike frame bag bouncing back while riding. LARGE CAPACITY: Backpack: 18.2 ""L*12 ""W*5.9 ""H, both side duffel bags: 11.4 ""W*5.9 ""D*13.4 ""H. Fully expanded to hold more items. MULTIFUNCTIONAL: You can use it as a cycling bag, messenger bag, daily commuter bag, long distance cycling bag, bike touring bag (comes with 2 side hanging pockets and 1 backpack) can be used independently I offer next day shipping for orders placed Sun-Friday! 100% 5 ⭐️ reviews on all items sold! Posh Ambassador so buy with confidence 💚