Gear Review: Outdoor Research Radiant Hybrid Beanie

A barely there beanie for high-octane workouts.

[aerobic pick]

For the less-is-more crowd, this thin beanie has just the right amount of insulation for cold-weather aerobic activities, with a gridded fleece that wicks and breathes exceptionally well. “My head gets hot faster than a Jetboil, so I don’t want a thick pile or wool hat, which gets too sweaty and doesn’t fit under helmets,” our tester says.

Get this hat to take the chill off the top with the least amount of bulk. Other pros: fuzzy comfort, good ear coverage, and sunglass-arm ports. $22; 1.3 oz.; one size;