Featuring UPF 50 protection that filters harsh UV rays, the Mountain Hardwear™ Butter Up™ 1/2 Zip T-shirt is the perfect moisture-wicking base layer with a buttery soft feel. The half-zippered closure offers easy venting and on/off. This zip-up pullover is styled with long sleeves with low-profile thumbholes, a collared neckline, and a straight hem. Crafted from polyester blend fabric with moisture-wicking properties, this pullover top is fit to be great for layering.
- Regular fit.
- 85{030b9985ae9c487d53fd7d6a6d4758dbb2723feb191a046d65ce2917ff1af288} polyester, 15{030b9985ae9c487d53fd7d6a6d4758dbb2723feb191a046d65ce2917ff1af288} elastane.
- Machine washable.
- Imported.
- Product measurements were taken using size SM. Please note that measurements may vary by size.
- Measurements:
- Length: 27 in








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