How to Choose Base Layers

Outfit yourself for adventure with these 100% merino wool base layer bottoms from REI Co-op. The breathable, ultrafine wool naturally resists odors and pilling. Flat seams are comfortable on the skin.
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Imported.
View the REI Co-op Merino 185 Product LineView all REI Co-op Women's Base Layer Bottoms| Best Use | Multisport |
|---|---|
| Fabric | 100% merino wool |
| Sun-Protective Fabric | Yes |
| UPF Rating | 30 |
| Moisture Wicking | Yes |
| Quick Drying | Yes |
| Underwear Weight | Lightweight |
| Inseam (in.) | 25.5, 28 inches |
| Gender | Women's |
| Sustainability | Fair Trade Certified™ Factory From a Climate Label Certified brand |
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First of all I loved the color. A nice grey toned purple that goes well with a lot of my wardrobe. As for functionality, it does the job. Fits underneath pants for extra warmth. The fabric is soft and is not irritating. I took them camping with me where temperature was in the mid to low 50s at night, and found myself overheating in my sleeping bag at one point. Wearing just base layers I was able to sleep comfortably with them in a tent. Outside the tent I did get a bit chilly at night and needed to add a layer. This has a waistband that resembles boxers to me (see photo). I think it layers under pants really well and I like the look better than just a standard legging, but I could see it not being everyone’s favorite. I am a size 14 usually and I think the 1x fit good at the waist, but a little loose for the actually leggings part. The fabric is 100% merino wool, so the maintenance is a little higher than some synthetics. EVERYTHING sticks to it and you have to be careful with how you dry it. But the payoff is that it keeps you warm and dry and lasts a long time. Big fan


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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.

