cycleops 400 lumen rechargeable swivel head flashlight CatEye AMPP400S Headlight Lighting the way for over a decade Cyclops CYCFLX400 Rechargeable LED 400/160

And you need to test daily that you actually are in ketosis using a: Blood testing meter (Keto Mojo is the best and what I use) or Breath meter (Amazon) although I use the KEYTO Breath Meter Fair Warning: If your try keto on the trail for a 3 to 7 day trip without being adapted you are going to be a very, very unhappy camper

Not too heavy

In the back, it extends 3.75 inches

you cant move the system to another helmet

Details The North Face Connector Backpack Best For Active Lifestyles The Good & The Bad Built for the outdoors Supportive air-mesh panel Plenty of space Extra padding Ventilation system Reports of not standing up No waist belt Why We Like It Known for building gear aimed at athletes and outdoor adventurers, The North Face makes products to withstand somewhat extreme conditions