Hydration Backpack accessories You can also easily add

You can also easily add as many buttons to the same head unit as you like

increases muscle blood flow assisting with oxygen delivery and aerobic metabolism

Magnetic USB charger for your button

The harness is adjustable at 4 different points for the ultimate fit

Adjustable Straps

Hydration Backpack accessories You can also easily addMeet our first design of our Solestream Backpack! This model has: Adjustable Straps Designed for Comfort and Flexibility Mesh Straps for Airflow It comes complete with its own bladder and bite valve Multiple Pockets Lightweight Grab yourself a bargain with this one. It's a great bag with multiple uses!