How to Choose Base Layers

Stay warm on the coldest winter hikes in this heavyweight base layer top. Icebreaker made it from their premium MerinoFine™ fabric for an extra-soft feel and efficient moisture management.
Imported.
View all Icebreaker Men's Base Layer Tops| Best Use | Multisport |
|---|---|
| Shirt Type | Partial-zip |
| Fabric | 100% merino wool (exclusive of decoration) |
| Moisture Wicking | Yes |
| Quick Drying | Yes |
| Underwear Weight | Heavyweight |
| Sleeve Length | Long Sleeve |
| Thumbholes | Yes |
| Gender | Men's |
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[This review was collected as part of a promotion.] Use it for cold weather hiking and biking. It is warm and cozy. The zipper does not work properly as I need to twitch it left/right along the upper end to make it zip all the way. The zipper is anything but smooth as the other icebreaker items including a cardigan are, that i own. For a size large it needs to be longer to work optimal as an undershirt. The material is superb.
(This review was collected as part of a promotion.) I was really looking for a heavy base layer and purchased these top & bottoms immediately. The quality is still obvious. Warm, but still breathable, the Size medium is just a bit snug on my 6'0" frame but still fine. I just completed a cold weather exercise the military where it was -15C to -23C. This is what I wore all weekend.
Outstanding warmth with top-notch quality, but at twice the price of other leading manufacturers that can match its performance. Will not return it but definitely will use my money more effectively in the future 
Superfine, soft, and beautifully cut. I have a number of this brands expedition weight garments. They are fantastic. This top is so nice I’m hesitant to wear it for sport. It’s like a designer dress garment
[This review was collected as part of a promotion.] I wear icebreaker everyday but love it especially for my remote arctic whitewater paddling trips. Never fails, always warm, fast drying and comfortable. Love icebreaker
I have some older icebreaker thermal’s that are paper thin and work way better than the newer ones. Definitely don’t recommend for the price you’re paying
Having other 300 and for the price... This is just a glorified 260. I think this is as far as my run with icebreaker will go.
(This review was collected as part of a promotion.) Simply irresestable product for extreme cold. Warm. Comortable. Everything we have come to expect from Icebreaker and more.
[This review was collected as part of a promotion.] I love the weight and the merino smoothness, so very lux in a utility base layer!
This article runs a bit small, so order up one size.


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