Penguin Christmas Light Up Holiday Ugly Sweater XL Gently used condition - Lights up with a box on the inside of the sweater (Has an on/off switch) Size XL The lights flash when on Measurements are approximate Length- 28 1/2” Bust- 48” I’m happy to answer any questions you may have. Smoke Free/Pet Free Home Ships Same/Next Day Christmas, Holiday, Penguin, Winter