Navy Core Women’s Running T-Shirt

The Core Range

Featuring our logo on the front and our name to the back hem, these navy tops are perfect for getting spotted by fellow Run Mummy Run community members. The plain design means that this t-shirt coordinates with your existing running kit and our exclusive collections. The tops are made from a technical wicking fabric, keeping you feeling fresh.


  • Short sleeves and a crew neck for a flattering cut
  • Features a ladies' cut (except UK 20 and 22, which have a straight fit)
  • Curved back hem for additional comfort (except UK 20 and 22, which have a straight-back hem)
  • Neoteric™ textured fabric with inherent wickability
  • UPF 30+ UV protection


UK 8 – 32" chest and 26" body length
UK 10 – 34" chest and 26.5" body length
UK 12 – 38" chest and 27" body length
UK 14 – 41" chest and 28" body length
UK 16 – 44" chest and 29" body length
UK 18 – 47" chest and 29.5" body length
UK 20 – 48" chest and 30.5" body length
UK 22 – 49" chest and 31.5" body length


The photos shown feature Lisa who is a UK 8/10 and 5'7", wearing a size UK 08; and Isobel who is a UK 14/16 and 5'3, wearing a size UK 16.


£19.99 £10.99

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Product Reviews (8)

8 reviews for Navy Core Women’s Running T-Shirt

  1. Rated: 5/5

    azar.anita (verified owner)

    I love this T-shirt I take size 14 and they fit lovely.. (one the loose size) as i don’t like my running shirt to be snugly . lovely colour and love the new logo on the side,, thank you

  2. Rated: 5/5

    fittydee (verified owner)

    Perfect fit and love the fabric thanks rmr perfect as always

  3. Rated: 5/5

    alison2 (verified owner)

    I love this! It’s the same shape, material and sizing as the old Core T-shirt but with the new logo and a different design on the back. It’s a flattering fit, and perfect if you don’t like your tops tight across the tummy/hips. I’m a 14-16 and I chose the 16 as I like my tops fairly loose. There’s plenty of room in it and it’s a good length too. Ideal for running, gym and everything else!

  4. Rated: 5/5

    marie (verified owner)

    Ordered the UK 10 and it fits perfect. I’m a petite 10 and have to say this one is my best fit yet on an RMR top. Love the style and cut, the simplicity of the design and colour is very flattering too

    My favourite top for now until another one is launched 🙈

  5. Rated: 4/5

    sarahbibby16 (verified owner)

    Love the colour and feel but the 18 comes up absolutely massive compared to the old core range and tribe t-shirt so I’m going to have to size down.

  6. Rated: 5/5

    Rosie Bassett (verified owner)

    I bought the size 14 in this top and it’s a perfect fit so is true to size, it’s a soft fabric and really flattering cut, I love it!

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