
REI Co-op Men’s Merino 185 Long-Sleeve Half-Zip Base Layer Top $29.83 at REI.
- Made with 100% merino wool that naturally breathes, wicks away sweat, dries quickly and resists odors, making it an ideal multiday trip companion
- UPF 30 sun protection
- Half-zip front helps with venting; standing collar and chin guard for protection
- Flat seams and merrow stitch construction eliminate chafing
- Underarm gussets allow full range of movement
- Designed to hug the body for optimum performance