This CamelBak Octane 12 Fusion hydration pack is $37 at Walmart. You'd pay $142 at CamelBak direct.
Shipping is free. Buy Now at Walmart
Features 2L (67-oz.) water reservoir capacity Cordura 75-denier ripstop nylon with PU-coated back Water-repellent finish without PFCs Ridged foam back panel with vented mesh for airflow Made with recycled materials