Our undershirts are for men of all shapes and sizes. Tommy John is not a tee shirt, nor do we recommend you wear it by itself with a pair of jeans on the weekend. Men of all sizes have faced the same challenges with their undershirts riding up and bunching, regardless of how big they are. Tommy John is proud to be the first company to design an undershirt that hugs the body and stays tucked in, while giving you unmatched comfort and feel.