The Knox Studio Rucksack MK3 is made from ultra-durable 600D polyester canvas fabric. It offers a waterproof design with fully taped seams, PU-coated nylon lining and a roll-top buckle closure with added branded buckle cover for added security. The vulcanised rubber moulded base with added Micro-Lock offers superior impact protection, and this also comes with an internal padded laptop pocket and boasts 28 litres of storage capacity. A removable mesh packing cube with YKK zips is included for organised storage. The external water-resistant YKK Aquaguard zip pocket gives extra storage and contains a helmet carrier with a 3-point secure attachment system and reflective prints for night visibility. Dual external mesh water bottle pockets provide easy access, and reflective trim added to the straps gives night visibility in oncoming traffic. A hexagon quilted padded spacer mesh back allows for breathable comfort, and adjustability at the arm straps slows for the perfect balanced fit, and the adjustable waist and chest buckles give the ideal fit. Knox branded webbing carry handles give easy transportation off the bike, and a branded Knox silicone badge to the centre looks great.