Geigerrig Tactical 1600 Hydration Backpack | Black M.R.K.T. The plastic heart-rate module is

The plastic heart-rate module is removable from the strap so you can wash the strap as often as needed

Durability and wearability are two notable traits in this single piece 42mm case with highly visible luminous hands and markers

10 holes each 5

2) Look at Foretell

Water resistant up to 3 ATM

Geigerrig Tactical 1600 Hydration Backpack | Black M.R.K.T. The plastic heart-rate module isThe Tactical Geigerrig 1600 is a state of the art hydration system backpack that can transport fresh drinking water anywhere you go. Whether exploring, exercising, or traveling, this water backpack is perfect for keeping you hydrated and cool. With a 100 oz (3L) of water storage and pressurization tube for easy refill, you won't have to worry about not bringing enough. The shoulder and chest compression straps will keep the black tactical hydration