Alpinestars Sprint Back 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"> 81% Polyamide 19% Polyester </span></li><li><span class="a-list-item"> Imported </span></li><li><span class="a-list-item"> • 8L capacity. </span></li><li><span class="a-list-item"> • Main chassis constructed form durable rip-stop nylon with PU-reinforced textile. </span></li><li><span class="a-list-item"> • Mesh shoulder strap and back reinforcements for improved airflow. </span></li><li><span class="a-list-item"> • Main compartment for hydration pack (sold as accessory upgrade). </span></li><li><span class="a-list-item"> • Conduit for hydration hose. • Highly convenient front compartment pocket with waterproof zipper. </span></li></ul><!--   Loading EDP related metadata  --><div aria-live="polite" class="a-row a-expander-container a-expander-inline-container"><div aria-expanded="false" class="a-expander-content a-expander-extend-content" style="display: none;"><ul class="a-unordered-list a-vertical a-spacing-none"><li><span class="a-list-item">8L ; Main compartment for hydration pack (sold as accessory upgrade)</span></li><li><span class="a-list-item">Highly convenient front compartment pocket with waterproof zipper</span></li><li><span class="a-list-item">Removable waist belt， plus adjustable sternum strap for secure fitment; Sternum strap incudes whistle to attract attention</span></li><li><span class="a-list-item">Mesh shoulder strap and back reinforcements for improved airflow</span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41TDQiRj8TL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41peXrYrpYL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51BwmyIYK3L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31bVUMGCX1L.jpg" noproxy></div></div>