Size Guide

We know sizing is one of your big concerns when it comes to clothing, especially when you're buying online, so hopefully the following guide will help you get your perfect fit, or the perfect fit for your partner/friend.

  • We get very few items returned due to sizing issues - read the reviews below!
  • Our 30 day no quibble returns policy (which is extended for Xmas purchases) is there in the event of a sizing problem.



If you prefer a looser/tighter fit, have longer arms than normal or just want to know exactly what you're getting you can use the following measurement charts


1/2 Chest - from armpit to armpit, not around chest

Body Length - From neck hem at back of item to lower hem

Sleeve Length - From hem on sleeve to hem on cuff


Model is 5'2" - shown wearing size 10

Sweatshirt sizing

Running Tees

Model is 5'2" - shown wearing size 8

Technical T-Shirt Size Guide


Model is 5'2" - shown wearing size 8

Vest Size Guide

Cotton Tees

Cotton Tee
Model is 5'2" - shown wearing size 8

Cotton Tee Size Guide

Here's what people have been saying about our sizing

5 stars

Clothing is fabulous I now own 3 sweatshirts (including the new running late) and two running vests, wash great, true to size and sooooo comfy, highly recommend

5 stars

Omg - it’s gorgeous - soft! and fits beautifully. I never buy online - yet your help and providing measurements were spot on! now I am confident with sizing, I can now buy more jumpers from the amazing TMR range.

5 stars
Love my new sweatshirt - Run Miles, Drink Wine. It's so comfy and the arms, which I normally have a problem with in jumpers, are long enough! It's going to be worn lots now the weather's getting colder. Will definitely be back for more soon
5 stars

My sister bought me the THIS MUM RUNS tshirt for my birthday. It's lovely that it's not too tight so it hides my wobbly bits but feels lovely to run in. I got mixed up with one of the trek adventures while out running last weekend and the support crew gave me a "GO RUNNING MUM" cheer!

5 stars

Wearing my grey RUNNER sweatshirt for first time today and love it so soft and comfy to wear teamed with skinny jeans I’m ready for the school run. Can’t wait for my RUNNING LATE one to arrive

5 stars

Customer service is amazing! Love my sweater - good quality and good sizing. Will be ordering more!

5 stars

My new Trundler sweatshirt arrived this morning. It is lovely and fits perfectly. Thank you TMR. Think I need another now ;)

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