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Underarm zip vents shed heat fast on steep climbs or humid Southern trail sections where breathability matters most
Regular fit with a fuller rise and 11-inch inseam — stays put when you're moving
Lace-lock bungee closure lets you dial fit on the fly and get in and out without untying anything
and resists odor through all-day wear
Built for runners and trail athletes who push into low-light hours
Outdoor Research Helium Down Jacket – Men's Size:XL Underarm zip vents shed heatFor cold weather trail runs, alpine approaches, or hunt camp layering, the Helium Down Jacket is our pick for guys who need real warmth without hauling extra weight. Lightweight down insulation delivers a high warmth to weight ratio, and the packable design stuffs into its own chest pocket so you can stash it the moment the climb heats up. The trim, athletic fit layers cleanly under a hardshell without bunching. Lightweight down insulation provides