With a focus on ventilation to the back of the rucksack, there\'s an in-built focus on refreshment throughout the day. The rucksack gets a 2.L Hydraulics Reservoir, so you don\'t need to worry about buying a  ports water bottle separately. This leaves more space in the central pocket to store extra pieces of equipment like a helmet, windbreaker or a microfleece if the weather take a turn. So that you can take a sip of water whilst you ride, the bite-valve features a magnetic retainer on the pack\'s sternum strap. Talking of magnets, the sternum strap has an innovative closure mechanism, allowing you to open and close it without taking your eyes off the trail. When you encounter uneven terrain, the foam used in the parts of rucksack that come into contact with your back, such as the back and shoulder pads, give a little bit so that your natural motion doesn\'t falter.  For storing your sunglasses or small essentials, there\'s a scratch-free pocket inside the front panel, alongside a brightly coloured clip to ensure that you\'re never separated from your keys.Airscape backpanelTailored hipbeltOuter Lid-Lock attachment - for bike helmet Sternum strapPerformance-fit harnessLarge central pocket - 12L of storageIntegrated 2.5L Hydraulics Reservoir - dedicated pocketFront shove-it pocket - for es xtra pieces of clothingColour: RedDimensions (CM): 47L x 23W x 22D