Source Outdoor Dune 1.5L Trail Run 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"> Low-profile hydration pack for trail running and endurance sports with 1.5-liter WLP hydration bladder (50 ounces) </span></li><li><span class="a-list-item"> X-Fit adjustable shoulder straps wraps the body while allowing for natural body movement </span></li><li><span class="a-list-item"> Easily accessible pockets for tools， nutrition snacks， keys， and other gear </span></li><li><span class="a-list-item"> Lightweight， breathable 70D nylon ripstop construction with open 3D air-mesh </span></li><li><span class="a-list-item"> Taste-free WLP reservoir with cut-out center to prevent ballooning effect and round Helix bite valve with safety shutoff mode; BPA and phthalate free </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41iaNWnNj1L.jpg" noproxy>