How to Choose Base Layers

Layer up for active outdoor adventures with these lightweight Outdoor Research base layer bottoms. They're made with a lightweight, breathable merino wool blend. And they provide UPF 30 protection.
Imported.
View all Outdoor Research Women's Base Layer Bottoms| Best Use | Multisport |
|---|---|
| Fabric | 53% merino wool/42% polyester/5% LYCRA spandex |
| Sun-Protective Fabric | Yes |
| UPF Rating | 30 |
| Moisture Wicking | Yes |
| Quick Drying | Yes |
| Underwear Weight | Lightweight |
| Inseam (in.) | 30 inches |
| Gender | Women's |
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Extra comfy and warm merino base layer! The waist band is nice and holds the pants in place. The ankles have a seam so they are tight fitting. Really comfortable and run pretty true to size. I’m 5’6, 135 lbs and have a medium. Recommended!
Purchased the top and bottoms and LOVE them. Use them as pajamas and they're great for travel and multiple wears without getting stinky.
Excellent base layers for all kinds of conditions. They run a bit big but they still fit. Soft versatile material.