| Size | Volume | Weight |
| 21 L | 0.75 kg |
New larger version of the popular Maya 18. Hydration port and sleeve. Expandable front stretch-mesh pocket with three-point compression. Fleece lined gadget pocket. Dual stretch mesh waistbelt pockets with cargo stabiliser loops.
BioSync is designed specifically for use during high aerobic activities such as running, hiking and cycling. The packs stay snug against your back, stretching and retracting as your body moves.
