Our shirts are printed by a US affiliate company, so be aware that the larger sizes (your XLs and XXLs) might be a little bigger than you get in Ireland and the UK.
As a rule of thumb, if you're snugly fit into a XL in Ireland, order a L from us. If you're XXL in Ireland, we'd recommend XL.
All other sizes run as normal.
Here's our Kids Shirt size guide in CM for convenience. Get that measuring tape out!
If you're in any doubt, give us a bell at firstname.lastname@example.org and we'll let you know what works best for your size.