water buffalo hydration backpack - lightweight hydration pack with 2l water bladder - water backpack for hiking, running, biking, and raves - road runner 12l hydropack backpack arctic blue is up for auction in Sports & Outdoors. The current bid is $8.00, 77% below the $34.99 MSRP, in New/Like New condition. This auction has ended — similar items appear in live auctions regularly.