These rolls bags are made from a tough PVC tarpaulin, which is welded to form waterproof seams. When straps are added to perform essential functions (such as securing the bag onto a motorcycle), Oxford uses innovative construction techniques to further reinforce the bag whilst ensuring complete waterproofing. The latest generation of Oxford’s acclaimed Aqua luggage now offers a choice of five useful tail bag sizes - from commuter 8L through to ‘epic voyage’ 70-litre versions – plus a range of backpacks and tank bags. Features: Easy to grab carry handle. Waterproof roll-top closure. External and Internal pockets for small items. Reflective details for improved visibility. Wipe-clean, waterproof construction with welded seams. Padded shoulder strap for added comfort. Unique attachment system for motorcycle with under-seat security strap. Compression straps for maximum stability. Approx size when filled: (HxWxD) 35 x 60 x 34cm