The Acepac FUEL BAG M is a bicycle bag. Nylon (PU coating 1500 mm H20), is the main material as it is a durable and lightweight synthetic fabric. Easy access into the bag thanks to the water-repellent YKK zippers. The zipper sliders are connected by a Hypalon loop to allow both zippers to be opened simultaneously with one hand. The mesh side pockets are for holding energy bars, gels, etc. also serve very well as a bin for their packaging. Let's keep the trails clean! Inner lining has a bright colour for easy orientation inside the bag. Adjustable Velcro straps on the bottom andon the front of the bag.