Darkness is the absence of light, so we must not only speak of it or spread it, we must also become it. - Arielle Estoria. Become the light in our custom designed spectrum lightworker tee! This t-shirt is comfortable, soft, lightweight, and form-fitting. We recommend to wash according to tag instructions at least 3 times before wearing. • 100% combed ring-spun cotton • Heather Grey is 90% cotton, 10% polyester • Fabric weight: 4.3 oz/yd² (145.8 g/m²) • Pre-shrunk