A whole host of famous faces are sporting the t-shirts and lending their support to the campaign, including comedian and actress Aisling Bea.
You might even manage to get your hands on a piece by a famous name!
Calling all casual strollers, keen walkers, joggers and seasoned runners alike...
A reminder that we really are all in it together!
The now-infamous polka dot Zara Dress seen on everyone from commuters to public health nurses has decided to use its powers for good.