Guerrilla Packs Roundhouse Internal Frame Backpack， Middle Grey/Dark Grey<div style="text-align: left;"><strong>[Product Information]</strong><ul><li id="replacementPartsFitmentBullet" class="aok-hidden" data-doesntfitmessage="We're not sure this item fits your " data-fitsmessage="This fits your "><span class="a-list-item"><span id="replacementPartsFitmentBulletInner"><a href="#" class="a-link-normal hsx-rpp-fitment-focus">Enter your model number</a>to make sure this fits.</span></span></li><li><span class="a-list-item"> 3，661 cubic inch capacity (50 liter internal frame backpack with 10 liter detachable daypack and top lid) </span></li><li><span class="a-list-item"> Tension-mesh suspension system for added back support and increased ventilation </span></li><li><span class="a-list-item"> Side and top loading design </span></li><li><span class="a-list-item"> Features: reinforced top grip handle， compression straps， accessory mounts， rain cover and hydration compatible </span></li><li><span class="a-list-item"> Torso fit range: 15-Inch to 22-Inch </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41yO44zyxHL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41-p2vQwadL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/412B1x4XXZL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41xQ4hVrkLL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41tnVriQDcL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51aE9DCdQ6L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/619oB7DIWcS.png" noproxy>