The big problem when trail running in the dark? Predators. Second to that, however, is keeping your footing steady on the trail. Sure, a headlamp helps, but it often fails to show you the whole picture: glance at something in the woods and you’ll lose sight of the rock you’re about to stumble over. The GoMotion Synergy lightvest solves this by putting a three-level 100-lumen headlamp on the sternum strap of an otherwise standard 1-liter hydration reservoir, keeping light (and your focus) on the road ahead. The beam, powered by three AA batteries, is bright and steady, with a “flood” setting that’s ideal for illuminating dark paths as well as a runner’s peripheral vision. The 100 lumens were more than enough to keep us confident at top speed in the dead of night, and the vest itself is breathable and barely noticeable. Worried about what’s behind you?Two flashing red LED taillights keep cyclists and other things that go bump in the night aware of your presence. [$80; gomotiongear.com]