Description Availability Description Availability Description Hydration system for backpacks. BPA and PVC-free Quick release fastener (hydration tube and hydration bladder) Lockable mouth piece Wide, easy to fill opening Taste-neutral Volume: 2 litre or 3 litre Weight: 130 grams (2L), 140 grams (3L) Size: 17 x 32cm (2L), 18 x 42cm (3L) Material: TPU Instore Availability