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Intraknit Racerback Bra - Women's

3.6944444444444446 out of 5 stars
36 Reviews
Current price: $39.00 - $52.00 Original price: $65.00
Up to 40% off


Size Chart


Why We Like The Smartwool Intraknit Racerback Bra

The Smartwool Intraknit Racerback Bra features engineered knit cups, a slim fit, and a ribbed bottom band, making it the ideal choice for low-impact activities. Its construction follows the natural contours of the body for optimal support, while its knit merino wool/Tencel interior provides next-to-skin comfort.


  • A soft, durable bra for low-impact activities
  • Knit merino wool/Tencel material offers enhanced comfort
  • Slim fit follows the natural contours of the body
  • Engineered knit cups deliver shape and lift with removable pads
  • Ribbed bottom band sits comfortably against the ribcage
  • Back pocket easily stores a phone, keys, or other items
  • Item #SWLZ8XI
[outer] 62% nylon, 28% elastane, 10% polyester, [lining] 29% merino wool, 29% lyocell, 22% nylon, 20% elastane
Manufacturer Warranty
2 years
casual, training, yoga

Overall Rating

3.5 based on 36 ratings

Review Summary

1 Stars - 7 reviews
2 Stars - 3 reviews
3 Stars - 3 reviews
4 Stars - 4 reviews
5 Stars - 19 reviews

Fits Slightly Small

Screen reader users: the following list provides a visual scale to illustrate the product fit. Please refer to the heading above for the fit type in text.
Runs smallTrue to sizeRuns large

What do you think about this product?


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1 out of 5 stars

April 8, 2024


Size Bought:
5' 5"

Not comfy, no stretch, runs small. I’m 5’5” 145 lbdls, 36c and the larger was 3 sizes too small

Mary S
5 out of 5 stars

February 27, 2024

Great everyday bra for active people!

[This review was collected as part of a promotion.] I have bigger boobs and a smaller waist (34E) and these keep everything in place for activities like hiking and skiing, but not running.


Originally reviewed on

5 out of 5 stars

February 18, 2024

Comfortable and warm! Fits great

[This review was collected as part of a promotion.] This bra is perfect for activity.


Originally reviewed on

3 out of 5 stars

February 14, 2024

Okay, but I expected more.

[This review was collected as part of a promotion.] I sized up per recommendations, and it's a little too large. I sent the largest size back. This was my first foray into wool and I expected it to be more wicking than it was-I still felt cold due to boob sweat once I cooled off & had to change post workout. I hate removable padding but the Smartwool bras were the only wool bras I could find with padding. I appreciate the padding, it just doesn't stay put. This has enough "hold" for yoga, hiking, etc, but I wouldn't run or do HIIT workouts without a supportive workout tank adding support. In a dream world, I'd love to see a truly wicking version with straps between this and the strappy option with sewn in padding.


Originally reviewed on

5 out of 5 stars

February 11, 2024

same smartwool quality I have come to expect

[This review was collected as part of a promotion.] quick dry and non smelly :) It runs a little small, I would size up.


Originally reviewed on

4 out of 5 stars

November 9, 2023

Good support and moisture management

I've used it once or twice and have initial impressions
Size Bought:
5' 2"

While other reviewers noted the relatively low % of wool, I find this beats any 100% synthetic bra I’ve ever owned for moisture management and still offers good support, at least if you’re smaller chested. Very soft and comfortable. Agree with another reviewer- it’s a great backpacking bra.

janet2424067 j
4 out of 5 stars

November 4, 2023

Great bra.

[This review was collected as part of a promotion.] Well made. Very supportive almost to the point of too snug. Wish the pads were more substantial so they moved around less. The bra is thicker so it does not dry as quickly. Maybe better to buy 2 at a time.


Originally reviewed on

2 out of 5 stars

October 24, 2023

Smartwool cheapens a great product

I've been wearing Smartwool bras and underwear for years and absolutely love them. Went to stock up again and super disappointed in the new Intraknit line. No longer is there are 70-80% wool content, now it's barely 30%. You can definitely feel the difference, the material is no longer as soft nor wicking. The whole point of Smartwool is WOOL, not nylon! Please bring back the real deal.


Originally reviewed on

5 out of 5 stars

October 20, 2023

Super happy with this bra!

[This review was collected as part of a promotion.] Wonderful bra! Comfortable fabric and I love the long line. Great for run, PICKLEBALL and biking. Have 2, getting another! Wash and dry great, no shrinking.


Originally reviewed on

4 out of 5 stars

August 22, 2023

The best backpacking bra I have found so far

Bought for a backpacking trip and it's become my favorite bra. I have a larger chest so it's hard to find something with support that's still breathable, this is it! I removed the inner pads and it is so comfortable, it wicks moisture, holds its shape, and is easily re-wearable for several days under the most extreme conditions. 10/10 will be replacing the current bras I own with one of every color tbh. Thank you Smartwool for knocking it out the park again!


Originally reviewed on