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.FeaturesAirscape backpanel - Sits comfortably with a large central ventilation channelLidLock bike helmet attachmentFront \'shove-it\' pocket - Easy access to your gearSide compression straps - For efficient storageScratch-free zip sunglasses and gadget pocketSuitcase opening on front panelSternum strap buckle with magnet - Glove friendly bucklesLED light attachmentInternal key attachmentReflective graphic detailCapacity: 12 litresDimensions: L47 x W23 x D22cmWeight: 0.7kg