Update your browser for a better shopping experience!

Get faster load times, stronger security and access to all features.

Sweaty Betty

Online only

Therma Half Zip Running Top

£110

Colour

Size

Free standard delivery over £60

Product code: T129269T

About this style

Stay warm on cold weather runs in this mid-layer running top from Sweaty Betty. It's made in a slim fit for a neat silhouette, with an adjustable half-zip fastening on the cosy funnel neckline. Thumbhole cuffs hold the sleeves in place, while zipped pockets keep your essentials handy.

Curated By

Details & care

Fit and style

Slim fit

Zip fastening

Composition

76% polyester, 24% elastane

Care

Machine wash according to instructions on care label

Delivery, collection & returns

Delivery

Standard

Free over £60, or £3.99

Returns

UK returns

Free. Returns can only be arranged via postal options. Exclusions apply Full delivery and collection information Our returns policy

Exclusions apply

Full delivery and collection informationOur returns policy

About Sweaty Betty

Empowering women through workouts and beyond since 1998, Sweaty Betty’s iconic fitness gear will support you in reaching your fullest potential.

Reviews (2)

5.0

100% Recommended this product

02 December 2025KL85

Favourite this season!

Originally posted on sweatybetty.com

Yes, I recommend this

Soft and warm mid layer. Great fit, true to size. The purple is beautiful. So good I bought two!

Helpful?

13 October 2025LolaMoo5

Winter Running Essential

Originally posted on sweatybetty.com

Yes, I recommend this

I’ve been wearing the Therma Half Zip Midlayer for a few weeks now and it’s quickly become my go-to for cold weather runs. The 76% recycled fabric is soft, warm, and surprisingly breathable - perfect for layering or wearing solo. I love that it’s part of the HeatProtect collection; it keeps me comfortable in all kinds of weather without overheating. The slim fit is super flattering and the mesh back adds a nice touch of ventilation. The thumbholes and watch opening are game-changers, and the reflective details give me peace of mind when I’m out after dark. The length is also just right - not too short, not too long. Highly recommend if you're looking for a recycled, high-performance layer to keep you moving through winter!

Helpful?