Why We Love the Outdoor Research Alpine Onset Half-Zip Top

Merino wool has quickly ascended to the top of the hierarchy when it comes to winter baselayers, thanks in no small part to the success of Outdoor Research's Alpine Onset Half-Zip Top. This baselayer is perfectly suited for midweight use, efficiently trapping heat, combating odors, and managing moisture while we navigate the backcountry in search of fresh powder or enjoy the slopes at our local ski resort.

Key Features

• A versatile baselayer specifically designed for cold days spent in the mountains
• A blend of wool that regulates temperature, moisture, and odors
• The quarter-zip design allows for easy layering and provides additional climate control
• Thumbholes help keep your sleeves in place, ensuring a comfortable fit

Responsible Collection Recycled/Repurposed Material 47% merino wool, 47% recycled polyester, 6% elastane

Insulation Weight: midweight

Fit: regular

Center Back Length: 26.5in

Style: 1/4-zip

Pockets: none

Hood: none

Thumbholes: yes

Anti-Odor: natural attribute of merino wool

UPF Rating: 31

Claimed Weight: 7.7oz

Activity: skiing, snowboarding

Manufacturer Warranty: lifetime