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Shop the Long Island University Southhampton Apparel Store for a wide selection of men’s sweatshirts at Prep Sportswear. With hooded, zip ups and crewneck styles available, there are hundreds of different ways for you to customize Long Island University Southhampton sweatshirts for men. Whether you are a student or alumni, your customized Colonials clothing shows your pride and support for Long Island University Southhampton. Looking to show off your spirit in something other than a sweatshirt? Check out our collection of customizable Long Island University Southhampton Men’s T-shirts , Outerwear and Hats .