Two coen flannel check shirts. The red one has a round collar, and the blue one has a regular collar. Both are 100% cotton and have two buttoned chest pockets. The blue one feels slightly thicker. The sizes are L for the red one and S for the blue one, but the actual measurements when laid flat are as follows: Red one: Shoulder width: 45cm, Body width: 55cm, Length: 77cm Sleeve length from shoulder: 66cm Blue one: Shoulder width: 44cm, Body width: 53cm, Length: 70cm Sleeve length from shoulder: 61cm I've listed the size as M on Mercari, taking the middle ground, but please refer to the actual measurements. Those who usually wear M should be able to wear both without any problems. Please consider purchasing.