Something Greek has all of your favorite Sigma Pi Fraternity Clothing! Check out our Sigma Pi Twill-Lettered Items, ranging from styles like our Letter T-Shirt to our Crewneck Sweatshirt. Choose whichever colors or pattern designs you want to show off your Greek letters in. All of these Fraternity Items come with your Greek letters in 4-inch sewn-on twill. Shop all items Sigma Pi Fraternity right here!