King Coronation T shirts   We have a range of King Coronation T shirts  designs ready to print on to t shirts for the big day. T shirts are your standard box cut and are 100% polyester. These do not have as much stretch as your regular cotton t shirts so we suggest sizing up especially in size aged 1-9 years. The kid 9-10, 11-12 and 14-14 are reasonably sized. The adults again are on the smaller size. Ladies cut is a shorter, tight fitting t shirt.