Bike Rear Rack: Quick Release System, Easy To Attach To The Rear Seat Rack And Carry Handle For Easy Transport. Warning Reflective Strips Make It Safer To Ride At Night.Water Resistant: This Bike Bag Is Made Of Waterproof Pvc. Effectively Stay Away From Humid Climate Even In Sudden Rain.Large Capacity: Bike Trunk Bag, Multi-Pocket Design, With A Mesh Pocket Outside. Ideal Storage For Daily Essentials, Cycling Gear, Cycling Accessories. It Will Be A Good Companion During The Trip.Easy To Install: There Are 4 Strong Straps. The Front And Rear Straps Are Attached To The Luggage Rack. You Won'T Have To Worry About This Bike Bag Bouncing While You Ride.Obtuse Corner Design: Obtuse Corner Design For Two Side Pockets Which Ensures Enough Pedaling Space. Won'T Hit The Heel While Riding. Give You A Comfortable Driving Experience.