The RETRO PALMS - Shirt Bros is considered a tailored loose fit, perfect for those hot summery evenings. Our sizing is pretty damn accurate, so if you generally wear a size M t-shirt we reckon you should go for a size M RETRO PALMS - Shirt Bros, but if you like it tighter to show off the gains go one size smaller, if you want it looser go one size up, if you want it perfect go for your t-shirt size.