Great for wearing on your waist

I run trail races which require running at night. I've found that using two lights at once is good way to move during hours of darkness. A strong beam headlamp is recommended for seeing things greater than 15 feet away. This allows you to anticipate what is coming up. For this I wear the light on my head. The additional light is for you to see immediately in front of you so you can decide where to place your feet. Since trails are irregular, sometimes going up or downhills for miles a light that swivels up or down, depending on the terrain is a must. Most headlamps I've used only swivel one way. The Princeton Tec Fuel allows for quick and easy adjustment so the light is always in front of you. It's design which allows quick removal of the included head strap allows for quick and easy installing on any one inch waist band that typically comes with most backpack bladder systems.