Personalized Irish Shamrock Letter F Monogram Long Sleeve T-Shirt. St Patrick's Day gift Long Sleeve T-Shirt - Kelly Green has shamrock monogram Letter F design for St Paddy's Day parades and parties with green clover background and black alphabet F. Pre-shrunk 100% cotton 6.1 ounce long sleeve t-shirt. Double-needle stitched neckline and sleeves. Quarter turned. Shoulder-to-shoulder taping. Adult: S, M, L, XL, 2XL, 3XL