Free 2-Day Shipping on Orders Over $50* – Limited Time Only

Designed by the women at SmartWool, the Women's PhD Racerback Bra gives your curves the support and comfort they need for high-octane action. Made from a merino wool blend, it features stretchy mobility, a smooth face fabric, and a soft, moisture-wicking lining. Molded cups and an elastic band at the ribcage provide the support to stop the flopping and run amok in comfort. Ample, mesh-lined straps keep everything in place without binding or chafing.

  • Merino wool blend stretches for freedom of movement, breathes for cool, dry comfort, and naturally resists odor for enduring freshness
  • Smooth face fabric allows clothing to move over it freely without sticking
  • Soft lining wicks away moisture and feels great next to skin
  • Molded cups and elastic terry-loop band at ribcage provide comfortable support and stability for high-action sports
  • Wide seamless straps lined with ventilating spacer mesh won't bind, cut, or chafe
  • Reflective logo adds visibility when play goes into overtime and into darkness
  • Reviews
  • Q & A

What do you think about this product?

Have questions about this product?

Secure fit

  • Familiarity:I've used it several times
  • Size Bought: Medium

The bra is a little tough to get over the head but once it's on, it is very secure. For me, this bra provides enough support for running or high impact sports. The material is a little thicker than I would like, which takes longer to dry out than most merino I own. It seems there are two layers of material, merino lining the inside and polyester on the outside which would account for the thickness. The soft molded cups without padding make for good support.

Still looking for a lighter, medium support merino bra good for hiking. I've been wearing this for hiking, but I'd like something less constricting. A tiny bit itchy at times, but hasn't bothered me too much. Seems like good quality and well made.

I wear a 32/34DD and it is usually difficult for me to find the proper fit, but the Medium worked for me.

I like it

  • Familiarity:I've used it several times
  • Fit:True to size

My wife's review:



I'm a 32DD and the M fits well. It is not a high impact sports bra, but for yoga and hiking, it works well. As said before, getting it on is like working your way into a secured straight jacket, but once on, it's good.



When I first got it, I didn't like it. The racerback itched like crazy in a spot very few of us can reach, but after a few washes (I bought the nikkiwax wool wash) the back panel softened and no longer itchy.

Great bra

    I was looking for a sport bra that I could use while jumping my horse, jogging on a trail, and anything else in between. In other words, I needed a bra that keeps everything in place and minimize bounciness. This bra does a great job! I wish the elastic band was a bit more stretchy. I feel like Houdini every time I'm trying to get in or out of the bra. It's frankly a pain to get it over my shoulders. However, when in place it is a great bra.