Giant wp seat bag is constructed from high quality laminated nylon with welded seams making it completely waterproof and light weight a quick release mounting with reflective accents and tail light clip ensure safety throughoutfeatures waterproof seat bag light weight high volume seat bag perfex hi frequency welded seams 840d tpu laminated nylon 100 waterproof quick release mounting reflective markings for improved low light visibility and tail light hangersizes volume 06l weight