REI Co-op Lightweight Base Layer Half-Zip Top - Men's
![REI Co-op Lightweight Base Layer Half-Zip Top - Men's](https://i.ytimg.com/vi/v86Du3U58fQ/maxresdefault.jpg)
Rmlyc3QgaGFsZi1taWxlIGNvbGQ7IG5leHQgMyBtaWxlcyBzd2VhdHk7IGx1bmNoIGJyZWFrIGNvbGQuIERvbid0IHN0cmVzc+KAlHRoZSBSRUkgQ28tb3AgbGlnaHR3ZWlnaHQgaGFsZi16aXAgbG9uZy1zbGVldmUgYmFzZSBsYXllciB3aWNrcyBhbmQgYnJlYXRoZXMgdG8ga2VlcCB5b3UgY29tZm9ydGFibGUgYWxsIGRheS4=
First half-mile cold; next 3 miles sweaty; lunch break cold. Don't stress—the REI Co-op lightweight half-zip long-sleeve base layer wicks and breathes to keep you comfortable all day.
![](https://di2ponv0v5otw.cloudfront.net/posts/2023/04/05/642e38afac1b04f1e51826b2/m_wp_642e38bdc5df6c910aa11476.webp)
REI, Tops, Rei Coop Lightweight Base Layer Half Zip Top
![](https://i.ebayimg.com/images/g/aK8AAOSwoF1l6ge0/s-l500.jpg)
Rei co-op lightweight base - Gem
REI Co-op Lightweight Base Layer Half-Zip Top - Men's
![](https://i.ebayimg.com/images/g/jwEAAOSwrHpiCCt-/s-l1200.jpg)
REI Co-op Merino Wool 185 Long-Sleeve Half-Zip Base Layer Women
![](https://www.rei.com/media/c165a117-e3f8-45c7-8892-231b69ece596.jpg?size=576x768)
Rei Lightweight Base Layer
REI Co-op Lightweight Base Layer Half-Zip Top
REI Co-op Midweight Base Layer Half-Zip Top - Men's
REI Co-op Merino 185 Long-Sleeve Half-Zip Base Layer Top - Men's
REI Co-op Midweight Base Layer Half-Zip Top - Men's
![](https://cdn.mall.adeptmind.ai/https%3A%2F%2Fs7.toryburch.com%2Fis%2Fimage%2FToryBurch%2Fstyle%2Fmerino-double-stripe-short-sleeve-sweater-on-model-front.TB_148924_058_20230203_OMFRO.pdp-1440x1638.jpg_640x.webp)
REI Co-op Merino 185 Long-Sleeve Base Layer Top - Men's
![](https://res.cloudinary.com/yerdle/image/upload/w_900,h_900,c_fit,q_auto:eco,f_auto/v1673573499/production/partners/3/catalogItemImageCache/ducaazhqy9dvfjzquve6.jpg)
Used REI Co-op Lightweight Base Layer Half-Zip Top