MTB Buying Guides

SmartWool PhD Racerback sports bra review

The SmartWool PhD Racerback, a supportive, Merino-wool sports bra with a great range of styles.

A compression bra, made from Merino wool, perfect for wicking sweat while keeping your boobs in place.

The SmartWool PhD Racerback Sports Bra is seemless and clasp-less which, combined with the fact that it’s made from Merino wool, means that it’s super comfortable and easy to forget once you’re wearing it.

Surprisingly, although it’s gorgeous when the weather is cold, it’s comfortable in warmer weather and never feels sweaty – even if you are. The elastic ribcage band, if you buy the correct size, is tight enough to give support, but doesn’t leave you feeling as if you can’t breathe, as some sports bras do. You also don’t get any nasty pinching or digging-in from metal clasps.

The bras racerback stops the need metal clasps, but is does prove rather testing getting in and out of the bra!

To test it to the max I wore it on a mountain biking ‘Drops and Jumps’ course, and never felt let down. It washes well and doesn’t lose its shape – or let odours cling. The only downside is that it is difficult to get off, and a bit of Harry Houdini wriggling is needed.


A super comfortable yet heavy-duty sport bra that’s great in all weathers and all conditions


– Comfy, natural fabric that wicks away sweat and regulated temperature
– Comes in 4 different styles and levels of support
– No clasps, therefore no pinching
– Very supportive


– Difficult to get on and off
– More expensive than other brands
– Available only for smaller cup sizes

More information: SmartWool
UK stockist: 01753 497190
Price: £49.99

What SmartWool say about the PhD Racerback Sports Bra:

We have ladies on our team who have been wearing their NTS Micro weight Baselayer tops under their synthetic bras for years, but we didn’t want to put something out unless we knew we could deliver the kind of comfort and performance women deserve,” explained Sara Yoder, SmartWool Women’s apparel product line manager.  “So after 640 hours of research and development, two decades of combined bra design expertise, 280 hours of factory work, 400+ plus hours of field testing, we are confident we finally have a bra that can stand up to the high standards of extraordinary comfort and performance our consumers expect from us.


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