Miffy Ladies Navy T-Shirt

Bought this to replace a much loved Miffy t-shirt. I wanted it fairly large so ordered a much larger size than my normal dress size. It is still snug and the neck line feels tight too. Very long and narrow for overall

For some reason the grey t.shirt seems better quality and also the blue t.shirt is a very small fitting .yet again I am going to have to send this back I ordered and received 2Xlarge in the blue I take a size 16 and that is no where near my size yet the grey is a a large and fits perfect .

Having read a previous review on the website I ordered size M as was told the product came up small. As well as this navy one I also ordered the white one.The quality of both was fine but the sizes were very different. The supposedly medium navy one measured a scant 16 inches from armpit to armpit whereas the white one measured 19 inches. So i have had to return the navy one but do not know what size to order as a replacement.