Heavyweight 8oz USA Cotton T-Shirt by Cross Stitch, a sub brand of Japan's Truss.
100% US Cotton which has a dry, crisp handle to it and will get even better with washing and wear. Similar in weight to a Camber tee shirt.
Measurements in inches:
Medium: Chest 20.5 / Length 26.5
Large: Chest 22.5 / Length 28
X Large: Chest 24 / Length 28.5