To wear your Teesgeex long sleeve crewneck t-shirt, simply put it on like any other shirt. It's suitable for casual outings or just lounging at home. When it comes to cleaning, make sure to turn it inside out and wash it in cold water with similar colors. If it gets dirty, you can use non - chlorine bleach, but only when really needed. After washing, hanging it to dry is the best way to keep its shape, but you can also use a dryer on a cool or low - heat setting. Remember, fabric softener can make the colors fade, so skip it. And don't try to iron or dry clean it, as that could damage the fabric.