Features Enter your model number to make sure this fits. 3.0L Big Zip SL Reservoir Hydration pocket with reservoir suspension External stretch mesh stuff pocket Ventilated shoulder straps and back panel Tool pockets and pump sleeve Description Product Description The Tokul XC 8.0 hydration pack is the ultimate, all 'rounder with enough gear and hydration capacity for cold weather kits or long summer days on the trail. It also adds an external stuff pocket for quick layer changes, or whatever extra gear you need to max-out your range.