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  • New Arrivals

Mountain Hardwear
Butter Up Long-Sleeve Shirt - Men's

Current price: $35.99 - $41.99 Original price: $59.99
Up to 40% off
Color:Adriatic Blue

Size:

Size Chart

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Butter Up Long-Sleeve Shirt delivers breathable protection for high-effort days

What Our Gearhead® Experts Are Saying:


"I use this when I know I’ll be exposed for long stretches. It feels great against the skin, manages sweat well, and the sun protection lets me move without constantly thinking about coverage."


We pull on the Butter Up Long Sleeve when the day starts early and the sun stays high, heading uphill with steady effort and no shade in sight. It’s comfortable from the first step, soft against the skin, and easy to wear solo as the trail opens up and elevation stacks quickly.


As conditions change, the Butter Up Long Sleeve keeps pace. It layers cleanly when temperatures drop and breathes well when the effort stays high, letting us focus on movement instead of managing our kit. It’s a simple, reliable piece that earns its place on long days outside.


Details

  • Lightweight long-sleeve base layer for sun-exposed activities
  • UPF 50 fabric provides reliable protection at elevation
  • Moisture-wicking material keeps sweat under control
  • Soft brushed knit feels comfortable during long efforts
  • Low-profile thumbholes add coverage and secure layering
  • Fitted cut works well on its own or under insulation
  • Item #MHWZAFP
Material
85% polyester, 15% elastane
Insulation Weight
midweight
Fit
slim
Center Back Length
27in
Style
long-sleeve crew
Thumbholes
low-profile
Anti-Odor
yes
UPF Rating
50
Manufacturer Warranty
limited lifetime
Activity
hike, climb, ski, snowboard, mountaineering, winter camping

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