Singletrackers, listen up—the Norrona Fjora Dri1 Men's Jacket is an ultralight, super-breathable jacket that's made for biking but is totally down to hike, run, and walk around town. A waterproof, breathable 2. 5-layer membrane keeps the rain off during soggy rides and breathes like a pair of lungs when you're knocking out hard cross-country miles, and underarm vents give an extra shot of air circulation when things get steep. On chilly days, you'll dig the neck cinch, and nights are made safer by reflective details on the back, shoulders, and arms.  Plus the longer back length prevents any gaps with exposed skin to the elements.