Black Diamond Astro 300-R Headlamp Review (Tested)
The Black Diamond Astro 300-R is the most popular headlamp at REI right now and we wanted to learn why. So as someone who has tested over 30 headlamps in the past 10 years, I decided to take the Black Diamond Astro 300-R on a thru-hike of the New England National Scenic Trail. I tested…