I'm a size 14/16 in tops and tshirts. Depends on the brand. 5 years ago I bought a colour selection of these t-shirts and was impressed by the fit (16) quality and durability. Only now did I think the white colour was a little faded and ordered some more, to refresh my wardrobe. Having received my new order I'm still pleased with the quality and sizing. Useful for smart / casual dressing, I find they look good with linen trousers and jeans and will buy some other colours when they become available.