To use this tee, simply put it on and enjoy its comfort. It's great for casual outings or just lounging at home. When it comes to washing, you can machine wash it in cold water with like colors to keep it in good shape. Don't use bleach as it might damage the colors. Tumble dry on low to prevent shrinkage. Since there are shade variations in the pigment dye process, don't be surprised if you notice slight differences. And remember, it takes 7 - 10 business days to process your order, so plan ahead.