Keep the mystery alive! Order a mystery tee and you'll receive a brand new t-shirt from the Upper Peninsula Supply Company. Your savings can be spent on a premium pint of Upper Peninsula lager. We all love a good mystery, and by purchasing mystery goods it helps us turn product over faster so we can get new designs in store and online. Mystery swag is all part of doing the fun things. We hope you enjoy. Save $6 (or more) from regularly priced t-shirts. Mystery tees, hoodies, and boxes are non-returnable. Garment and fabric specifications may vary.