Features Enter your model number above to make sure this fits. P.when("RPPStripeRendered").execute(function(stripeData){ if(stripeData && stripeData.state){ switch(stripeData.state){ case "result-found": document.getElementById("replacementPartsFitmentBulletInner").innerHTML = "This fits your "+stripeData.item+"."; document.getElementById("replacementPartsFitmentBullet").className = ""; break; case "no-result": if(stripeData.showBullet && stripeData.showBullet !== "0"){ document.getElementById("replacementPartsFitmentBulletInner").innerHTML = "No information found for this part for "+stripeData.item+"."; document.getElementById("replacementPartsFitmentBullet").className = ""; } break; default: document.getElementById("replacementPartsFitmentBullet").className = ""; } } }); AirZone Centro back system AdaptiveFitTM harness Hipbelt pockets Harness pocket Stretch mesh pocket Description Product Description Lowe Alpine AirZone Pro 35:45 BackpackDescription:A 4-season pack with space for extra winter gear, this award-winning hiking and trekking backpack features our unique AirZone Centro adjustable back system and AdaptiveFit hipbelt, ensuring the best possible fit whatever your size.The suspended AirZone back system helps to keep you cool and the extendable lid gives you the option of adding 10 up to 10 litres of capacity. With easy-access side entry, you can access your gear without having to put the back down on the ground - extremely useful on those long, wet winter days.Features:AirZone Centro back systemAdaptiveFitTM harnessHipbelt pocketsHarness pocketStretch mesh pocketExpandable volumeN6.6 Mini Rip fabricRaincoverChest strapHydration CompatibleKey clipTip grippersLash pointsIce axe loopBellows side pocketsSpider PlateSpecifications:Back System : Airzone CentroCapacity : 35-45LitresWeight : 1.57kg / 56ozDimensions : 65 x 30 x 29cm