TheTopeak MTX Drybag Trunkbagis aQuickTrack™ compatible TrunkBag featuring DryBag technology. It's made from 420 denier and 840 denier waterproof Nylon with sonically welded seams; it's a drybag roll top closure and weather-tight zippers keep that contents dry, while rigid EVA foam provides protection from road shock and vibration. Its divided main compartment helps keep things organized. Slide, click and go! Topeak’s QuickTrack™ system makes mounting any QuickTrack™ equipped bag or basket to a Topeak rear rack incredibly easy. Simply line up the composite QuickTrack™ base with the channels on any Topeak rear rack and slide forward until it clicks into place. No tools, no straps, no hassles. To remove simply push the yellow release button and slide the bag or basket rearward until completely disengaged. Just slide, click and go. TopeakMTXDrybagTrunkbagFeatures Compartments: 1 Divided Main Capacity: 12.1L Max. Load: Limited to Rack Maximum Loading Rating Insulation: Rigid EVA Foam Material: 420/840 Denier Waterproof Fabric, Sonic Welded Seams Bag Attachment: MTX QuickTrack™ Compatible Shoulder Strap, Reflective Printing Size (LxWxH): 38x24x26cm Weight: 930g Topeak is the world leader in developing and producing innovative accessories designed to make cycling more convenient, more accessible and more fun at every level. We are cyclists at the core and create the finest quality tools, pumps, racks, bags, lights and other products guaranteed to enhance the cycling experience. Many of our award-winning creations are recognized as the benchmark in performance, craftsmanship and value in every category. When it comes to biking, we help cyclists prepare to ride.