The medieval tunic Vallentin is available in sizes S, M, L, XL, XXL, and 3XL. To determine the correct fit, you should use your chest measurement as a guide: S corresponds to 92 cm, M to 100 cm, L to 108 cm, XL to 116 cm, XXL to 120 cm, and 3XL to 138 cm. If your measurement falls between two sizes, it is recommended to choose the larger size.