What Our Gearhead(R) Experts Are Saying:"I wore the Nao LT Headlamp on an early morning trail run before sunrise, and the rear battery pack made it disappear on my head compared to lamps with everything up front. The rear red strobe also kept me visible to a few cyclists sharing the trail in the dark."Early starts and late finishes both come down to trusting the light on your head, and the Nao LT Headlamp from Petzl is built for exactly that trust. Head out before sunrise for a long trail run, the beam spreading wide enough to catch roots and rocks well before your next stride lands. A rear-mounted battery balances the weight evenly instead of loading it all up front, and an ultra-thin, breathable headband stays comfortable mile after mile. The rechargeable CORE battery swaps in AAA batteries when needed, automatically adjusting performance to match, while a rear red strobe keeps you visible to anyone approaching from behind. At just over three ounces, it's light enough to forget you're wearing it until the trail gets dark.