Wazzie Wool Long Sleeve – OISELLE






Our original Wazzie Wool is a wonder. With exceptionally high New Zealand Merino, and some added stretch, it's the perfect baselayer. It works hard at moving sweat and keeping you cool on any distance run, but is equally good at insulation and trapping body heat when you need it. A classic crew neck is combined with thumb holes to make up the sporty details.

- merino wool / spandex
- thumb holes for added warmth
- responsibly sourced
- absorbs and wicks sweat
- naturally water repellent
- machine wash, tumble dry (line dry optimal)
- 25.5" body length (size 4)

Customer Reviews

Based on 22 reviews
Wazzie Wool Long Sleeve's biggest fan

I'm a 5'11, broad shouldered Masters rower. I now own 5 of these tops bought over 5 years. I l-o-v-e them. They keep me warm while winter rowing, skate skiing and running. They wash well - no stink. They're great cover for my long arms and torso with enough stretch to move with my body and not feel constrictive. My oldest shirt (at least 5 years old) is well worn and tearing but I keep sewing it up. These shirts are hands down my favorite pieces of athletic clothing in my closet. I will keep buying every year to ensure I have a supply for decades of activity or zombie fighting to come.

A nice update

I had a couple of OG wazzie wool pieces and loved them to the ends of the earth — I thought no way would the new fit be as good as the original, but I was totally wrong. This year's cut is a touch more generous around the middle and definitely TTS. I would easily layer another tank underneath for extra warmth. If you've sized up in the past, you definitely don't need to now. Sleeve length is perfect, don't feel like you're stretching the shoulders or neckline to get that extra inch in the arms. Overall, a really nice update and winter must-have for either casual wear or out on the run. I am 5'10", 34A/B, usually wear a 6 in O tops.

Lindsay B.
Great base layer, but see through

I really like this piece, but it is a little thin and not as warm as I expected it to be. Still makes for a great base layer (I've worn it under windbreaker jackets or under a vest). It's also really see through so I would have to wear a light colored bra or something over it. Just doesn't seem like it's worth the money...I normally wear a size 4 and found that this was too big.

Pirate G.R.

Has anyone experienced the shirt pilling? I absolutely love this shirt, but it has little pilling balls all over it!

Thanks for sharing your review! We will reach out from hello@oiselle.com to see how we can help.

love it! want more colors!

My favorite long-sleeved shirt by far. The fit is great (I have muscular arms, so that's a rarity) and flattering. Unlike the polyester running shirts, it doesn't stink after a workout! MASSIVE BONUS! I keep checking to see if this will get offered in other colors (leaf green? forest green? love the greens please!!), as I would definitely buy more! Yes it's expensive and I hemmed and hawed for a month or two before buying, but it was COMPLETELY worth it.


This is an awesome base layer for cold weather. I love wearing it as well when a regular long sleeved running shirt isn’t enough. It is NOT itchy at all. It’s held up to quite a few washes with no issues. Super flattering. I purchased a size 6. I am a 34d and 5’4” and 130lbs. It is not tight.

Madison H.
Perfect base layer

This is a perfect base layer for winter running and skiing. Like other reviews have said, definitely size down. I always wear a 4 in Oiselle but the 2 in this fits perfect!

Mary T.
Love this shirt, this year's version not quite as lovable as previous years

I love the Wazzie Wool Long Sleeve shirt. Nice long arms, great colours and a good weight for winter training. I have several versions of the last few years shirts. This year I got the "purple" one and although the fit is still great (long sleeves, fitted but not tight in the body, my usual large fits well, 5' 10" and 150lbs) there is just one thing not 100% about it. This version, and this one only, smells like wet wool when it is wet (fresh out of the laundry or after being worn). I can smell it when I am wearing it if it gets wet....not the nicest thing. Still a great shirt to wear around "casually" and the other versions are fine, no wet wool smell.

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