This Taylen hoodie is a lightweight, 100% cotton, and glows in the dark! The glow effect is activated by light. This hoodie is extra soft cotton, making it breathable and comfortable. This garment won't shrink or lose the glow effect no matter how many times it's washed. This by far is our favorite design because not only it has the glow in the dark effect, but reminds us that his light will continue to shine on us even in our darkest moments.