Hump deluxe waterproof rucksack coverthe best selling humpof all time featuresmaterial 100 nylon13rd more volume than standard coverswaterproof material with taped seams3m reflective transfer for night time reflectivityflo yellow colour for day time visibilitymesh pocket for quick access15 35 litres capacityre useable backpack coverbuyhump clothingfrom chain reaction cycles the worlds largest online bike store