Active 3x60TPI you can use an optical

you can use an optical adapter that you can have adjusted to fit your eyeglasses prescription (can be purchased separately)

model Fusion Drive Pro 500 lumens 500 run time up to 36 hrs color satin black weight 128g

and they all work outside their listed temperature ranges

0mm rise 0 deg length 40mm color orange

Active 3x60TPI you can use an opticalStrap attachment System for secure charger transport Separate compartment for control display Great ventilation with Air Flow Contact System 2 Hip Belt pouches for smaller items Material: N210 D Ripstop, 3D Air Mesh, Airo Flex Volume: 3L Size: 28 x 18 x 8cm (11 x 7. 1 x 3. 1) Weight: 460g (1lb) TECH SPECS Max Bladder Volume 1. 5L Bladder included Not included Volume 3L Bag Dimensions in inches 11x7. 1x3. 1 Volume Range 0 5L Bag Dimensions in cm