How to Choose Base Layers
REI Co-op Midweight Half-Zip Base Layer Top - Women's
$69.95
A good day outdoors starts with a good base layer. This soft, synthetic top from REI Co-op provides midweight warmth for comfortable layering on cold days. It has thumbholes and a half-zip front.
- Recycled polyester/spandex is peached for a supersoft next-to-skin layer—and has a smooth face so layers slide on easily
- 220 g/m² fabric weight offers midweight warmth and wicks moisture to keep you comfortable, with spandex adding just the right amount of stretch
- UPF 50+ sun protection
- High neck coverage with a half-zip front lets you open up for venting when you're working hard
- Thumbholes hold sleeves in place and help seal warmth in
- Underarm gussets allow full range of movement
- Semifitted to hug the body for optimum performance
- Flat seams reduce chafing
- Locker loop makes it easy to hang this to dry or just keep it off the ground
- Machine wash cold; wash separately; gentle cycle; remove promptly; do not use bleach or fabric softeners; tumble dry low; low iron; do not dry clean
- Made in a Fair Trade Certified™ factory
- Contains materials that meet the bluesign® criteria
- REI Co-op brand is certified to The Climate Label; we actively fund efforts to reduce carbon emissions across our business and support climate projects around the world
Imported.
View all REI Co-op Women's Base Layer Tops| Best Use | Multisport |
|---|---|
| Shirt Type | Partial-zip |
| Fabric | 92% recycled polyester/8% spandex (bluesign® approved) |
| Sun-Protective Fabric | Yes |
| UPF Rating | 50+ |
| Moisture Wicking | Yes |
| Underwear Weight | Midweight |
| Sleeve Length | Long Sleeve |
| Thumbholes | Yes |
| Gender | Women's |
| Sustainability | Fair Trade Certified™ Factory Contains recycled materials Contains materials that meet the bluesign® criteria From a Climate Label Certified brand |
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From feedback to field testing, all of our gear is dialed-in by REI Co-op members. Their adventures informed every stitch and detail—making for better, longer-lasting gear.
