Coleman Max 2L Hydration Bladder Lightweight Camping/Hiking 14L Storage Backpack $19.99 on Ebay$39 on Amazonhttp://www.ebay.com/itm/Coleman-Max-2L-Hydration-Bladder-Lightweight-Camping-Hiking-14L-Storage-Backpack/351035524419?pt=LH_DefaultDomain_0&hash=item51bb590543