Perforated Carbon Color Breathable Mesh.
Incredibly comfortable and provides the support to help promote better posture. most of all separate the backpack from your back to provide the best ventilation and reduce sweat altogether.
Fits standard backpack sizes 10-12 inches in width between the lower straps
Purchase is for 1 BackPackJack
Disclosure: BackPackJacks are designed to reduce sweat, we do not claim any medical improvements while using our product. If you suffer from back pain, do not use our product and consult your doctor.