evo.com | Outdoor Research Balaclavas > Merino wool and recycled polyester team up in the Outdoor Research Alpine Onset Merino 150 Balaclava for a piece that manages odor and moisture without any of the itch. At 1.3 ounces with flatlock seams and a hidden ponytail port, it layers under a helmet for skinning up before dawn or rides solo on a shoulder season trail run when the wind picks up. UPF 30 Quick Drying Updated Hinge Construction for Variable Face Coverage 53% Merino Wool / 42% Polyester / 5% Elastane Naturally Anti-Odor | Outdoor Research Alpine Onset 150 Balaclava 2027 - Large/X-Large in Black | Wool/Elastane/Polyester