It39s simple it39s effective it39s versatile and it39s waterproof a cover for your rucsac or pannier with reflective material which is visible from the rear or from the side if you use it to cover a pannierthe camouflage models are made of a tougher material to resist tearingfits bags from approximately 20 to 40 litres capacityelasticised edging and press stud fasteners ensure that the hump fits snugly over your rucsac or pannier bag and will not flap aroundreflective tape material