I have a question rw shirt sizing, I recently order a shirt in xxxxl, but the label in the shirt says SP Large, is this correct ?  I've just measured the pit to pit and waist and it's smaller that the stated size on the info section for the specific  shirt.  Thanks.

New member here from Leicestershire…. currently breaking these Wescos to my feet...and hopefully my order of 888s 21oz will arrive tomorrow.