OU Pin unisex long sleeve t-shirt grey. A best selling retro design is now available on a best selling unisex long sleeve t-shirt. You will absolutely love the fit and feel of this cozy t-shirt. Just what any University of Oklahoma Sooners fan needs this Fall and Winter! Unisex fit. Great for guys and girls! Officially licensed by the University of Oklahoma. Exclusive to Lush by a local brand. 50% polyester 25% cotton 25% rayon. Model is 5'2 size 26 wearing medium for a cozy look and fit.