How to Choose Base Layers

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Ski, winter hike or simply layer up in the men's Icebreaker Merino 260 Tech Leggings With Fly. These incredibly warm base layer bottoms feature 100% merino wool that's soft and breathable.
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View all Icebreaker Men's Base Layer Bottoms| Best Use | Multisport |
|---|---|
| Fabric | 100% wool exclusive of elastic |
| Moisture Wicking | Yes |
| Quick Drying | Yes |
| Fly Opening | Yes |
| Underwear Weight | Heavyweight |
| Inseam (in.) | Unavailable |
| Gender | Men's |
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These are excellent base-layer leggings. The Merino 260 fabric is warm without feeling overly bulky, and it does a great job regulating temperature when you're active. They’re comfortable against the skin, breathe well, and don’t get that clammy feeling you can get with some synthetic base layers. The fit is comfortable and moves well, and the fly is a nice practical touch. I especially like that merino wool naturally handles odor well, so these are great for long days outdoors, winter activities, or layering when the temperature drops. Icebreaker is THE option, but the quality, comfort, and warmth make these worth the money. I’d definitely buy them again.
These were my daily underlayer when I wasn’t working. They regulate body temp very well and I only think I washed them three times during the season. This was only due to spilling food on them. I work and play at a resort. I didn’t wear these for work due to the chance of diesel, hydraulic fluid or a slew of undesired chemicals soaking in. They would definitely get the job done though. If I wasn’t working these were on. I got a pair for work next year, black ;) Also wore the matching top and can’t recommend enough. I’m sure I’ll get another season if not more.
Very comfortable and warm base layer. Actually a little thinner than I thought they'd be. Better for active than passive activity. Pretty stretchy. I used them as a base layer/ pj's on the PCT.
I've been using these as a base layer for many activities and it's worked great! Keeps me warm. I've used these for skiing, camping, hiking, and mountaineering.