What is Unique about this product? 100% cotton. Unisex. “Illuminated Apparels” is a UK brand. It is famous for a unique interactive glow in the dark T-shirts. *Create funky creative designs, by using the included UV keyring and special pen “2xAAA batteries not included”, or even use your smart phone flash-light to create your favorite designs on the T-shirt. Keep interacting with the t-shirt throughout your day & night outings. High quality & durable. Totally safe. How long will the glow effect stay? The glow in the dark effect lasts up to 5 minutes, before it starts to fade away completely. You can be creative again. Where can you use the glow T-Shirt? Standout among your friends hanging-out at any event, festival or concert. Surprise your family on their special occasions’ gatherings or even gift it to your loved ones. Celebrate birthday parties exceptionally. Compete differently during night sports’ events. Suitable for indoors and outdoors. Get Creative … By drawing a picture, a pattern, making a shadow, or even a stencil of your imagination. Creating content for your social media? This t-shirt will help you come up with different ideas to drive more people to your accounts. *Let your kids interact with it too, by getting them creative. Washing and Care Instructions Washing machine safe. Do not tumble dry. Do not bleach – Do not iron on the glow ink area directly. Read instructions on the products.