Vintage Cal Poly San Luis Obispo Long Sleeve Made in USA Dimensions: Lenth (edge of collar): 28.87 inches With (pit to pit): 21.12 inches SIZE: Large Brand: Cotton Exchange Material: 90% Cotton, 10% Polyester Condition: Good / Used Sizing: Large See photos for measurements Photos of the Length (side of collar) & Width (pit to pit) are in inches California Polytechnic State Universityis a public university in San Luis Obispo County, California, United States outside of the city limits of San Luis Obispo If you have any questions, need more pics... let me know :)