Imagine setting up camp as the cool evening draws in, or starting an early hike under the canopy of still-slumbering stars. The REI Co-op Midweight Long-Sleeve Base Layer Top transitions seamlessly from a cozy morning layer under a fleece to a solo shield against the sun’s rays, thanks to its UPF 50+ protection. The flat-seam construction minimizes chafing, making it ideal for backpack-laden adventures where comfort is key. Whether tracing the spine of a mountain or navigating the quiet solitude of a forest trail, this base layer is your silent companion, enhancing every moment in the wild. 
 
PRODUCT CONDITION
 
This UnNew REI Co-op Midweight Long-Sleeve Base Layer Top - Men's is in Excellent condition. 
 
Products in Excellent condition have seen minimal use and wear. Any imperfections are purely cosmetic and do not affect the intended performance of the product.   



TECH SPECS

• Material: 92% Polyester, 8% Spandex
• UPF 50+
• Moisture wicking
• Thumbhole cuffs
• Flatlock seams
• Underarm gussets
• Forward shifted shoulder seams