Mountain Hardwear Men's Butter Up™ Long Sleeve Shirt

Crucial UPF 50 sun protection that’s moisture wicking and anti-odor for running solo or layering.

Make every high effort outing smooth as butter with a long-sleeve layer that’s worth its weight in sunscreen—minus the need for reapplication. This versatile piece holds its own solidly solo, providing UPF 50 coverage when the sun is glaring around every corner of singletrack and bouncing off every surface of rock and snow. And it plays well with others, too—providing a layering option that’ll keep you running cool under an insulated jacket with built-in moisture wicking and anti-odor properties. Knowing UV increases 2% for every 1,000-foot gained, you’ll be ready to earn some elevation in this soft-wearing, protective layer.

• Uses: Expeditions, Ice Climbing, Basecamp, Skiing/Snowboarding, Winter Camping
• UPF 50 fabric filters out harsh UV rays
• Anti-odor and moisture-wicking properties
• Low-profile thumbholes
• Fit to be great for layering
• Printed and solid options
• MHW heat transfer logo at bottom left hem
• Imported
• Fabric Body: Brushed Jersey Knit: 85% Polyester, 15% Elastane
• Center Back Length: 27 in / 68.6 cm
• Approx. Fabric Weight*: 170 g/m² / 5.01 oz/yd²