Osprey Packs Viper 13 Hydration Pack<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"> Stretch mesh pockets on the side of the pack allows for both organization and accessibility to gear on the outside of the pack </span></li><li><span class="a-list-item"> Upper side compression straps stabilize the load while lower， cross functional compression straps also serve as external gear carry straps </span></li><li><span class="a-list-item"> The blinker light attachment found near the base of the front panel of the pack allows for Quick light attachment for high visibility in the dark </span></li><li><span class="a-list-item"> An elasticized lid lock helmet attachment system provides storage for your helmet </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41cNUTI57%2BL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/01akNUttFZS.png" noproxy>