Accessibility Policy
Home Page
When autocomplete results are available use up and down arrows to review and enter to select. Touch device users, explore by touch or with swipe gestures.

Cart, contains 0 items

Accessibility Policy
Home Page

Cart, contains 0 items

When autocomplete results are available use up and down arrows to review and enter to select. Touch device users, explore by touch or with swipe gestures.
  • New Arrivals

Mountain Hardwear
Butter Up 1/2-Zip Top - Men's

Current price: $38.49 - $41.99 Original price: $69.99
Up to 45% off
Color:Asiatic Blue

Size:

Size Chart

Quantity


All-day base layer comfort built for movement in the Butter Up 1/2-Zip Top

What Our Gearhead® Experts Are Saying:


"I’ve worn this as a next-to-skin layer on long winter days, and the softness really stands out. It stretches easily under layers, manages moisture well, and the half zip is perfect for dumping heat without stopping."


We start cold mornings knowing comfort will matter hour after hour, and the Butter Up 1/2-Zip Top sets the tone from the first layer on. It feels smooth and forgiving against the skin, moving easily as we hike, travel, or settle into a long day outside without ever feeling restrictive.


The fabric breathes as our pace changes and wicks moisture before it becomes a distraction. With simple venting and a fit that layers cleanly, the Butter Up 1/2-Zip Top becomes the piece we forget we’re wearing—in the best possible way.


Details

  • Stretch base layer designed for cold-weather activity and travel
  • Moisture-wicking fabric helps regulate temperature during movement
  • Soft brushed knit feels comfortable for all-day wear
  • Half-zip design allows quick ventilation and easy layering
  • Thumbholes keep sleeves in place under outer layers
  • UPF 50 fabric adds sun protection at elevation
  • Item #MHWZA3T
Material
85% polyester, 15% elastane
Insulation Weight
lightweight
Fit
regular
Center Back Length
27in
Style
1/2-zip mock-neck
Thumbholes
low-profile
Anti-Odor
yes
UPF Rating
50
Manufacturer Warranty
limited lifetime
Activity
mountaineering, ice climbing, skiing, snowboarding, winter camping

View

Selecting an option will reload the available reviews on the page

Sorry, we don't currently have any of those types of reviews for this product.