Smartwool  Intraknit Racerback Bra

There's is a lot to like about this bra. The fabric is soft and comfortable. I bought it in the pink sugar color so I could wear it under my white shirts and still have good support. It works well for that. It is cut low under the arms so it doesn't rub. I purchased my first one according to the sizing chart. I am 5' 4", 116 lbs and a 36 A so I bought a medium. It was way too small. So then I bought a large. It is much better, but still very tight. It will be good for hiking, those who run and anyone who needs a lot of support. It's still a bit too small for less rigorous activities. Not something you'd want to wear all day long. So size up!!

I bought this to hike the Camino during the summer of 2026 during a record breaking heatwave. I am a 36 DD so I bought an XL and ditched the pads. It is a double layer so there is plenty of coverage. It was extremely comfortable even after getting sweat soaked. It would dry overnight and I rinsed it out every three days or so. I had a second backup bra I put on after the day’s hike and a shower. I am someone who gets rashes really easily but this kept my skin clear and comfortable. Definitely recommend!

The SmartWool Intraknit racerback bra is my go to for hiking, workouts, and travel. The material is comfortable and wicks moisture. The fit in the current generation of bras is true to size.

This bra is amazing. It’s super comfortable and breathable. Must have for hiking. It runs small, I would normally be a large and an XL fits perfect. For reference I am 5’9, broad shoulders, and I’m a curvy 36 C. Didn’t even blink at the price, once I tried it on I HAD to have it. I prefer it over my lulu sports bra.

[This review was collected as part of a promotion.] I bought my first one to wear while walking the Camino Santiago. It was perfect especially in the heat and humidity. I could dry it out overnight and I never had any issues, hardly knew I was wearing it. I am a 36E so I bought the XL and removed the pads. I found I kept putting it on even after the walk so I added a few more in all the colors. Great support for the gym, daily comfort for all the rest of the day.

[This review was collected as part of a promotion.] I absolutely love Smartwool bras. They are so comfortable while running. The racerback design is supportive but does not restrict movement. I bought the black and creme colored ones and love them both. I have been wearing Smartwool bras for running for years and don't run in any other sports bra.

I’ve been looking for a supportive wool bra. This was so tight I barely got it off after trying on. . I normally wear a 38C so I ordered a large, but it was way, way, way too tight. Would love to find a wool bra that has breast support without overall excessive compression.

I was looking for a supportive wool bra for backpacking. Wanted it to dry quick. And this checks all the boxes. I’m 32D+ and went with a medium knowing it would be tight. It’s snug but good. No complaints at all and I find myself grabbing for it every time I’m exercising.

Very cute and comfortable. Straps are a little thicker which can rub a little bit with heavy backpack on but otherwise great! Truly does not get as stinky as non-merino sports bras! Size seems accurate to others.

[This review was collected as part of a promotion.] Was surprised at the amount of support this sport bra provided. I wore to tennis and stretch class. I’m a 32DDD. Got the large.