The Cold Steel polo shirt is available in international standard sizes such as M, L, XL, and XXL. No explicit distinction is made between specific fits like slim fit or regular fit; however, the fit is described as modern and tailored. To determine the correct size, it is recommended to lay a well-fitting reference shirt flat and measure the chest width (from armpit to armpit) and the length (from collar to hem) and compare these measurements to the size chart.