Summarize the following:
Turn your skinny jeans inside out and hand wash it in a bath of cold water with a small amount of liquid detergent, like Woolite Black. If you find that stretching from wear is happening, wash them to promote shrinking in the fabric.  Always review and follow the washing instructions on the jean tags, since some jeans require very specific care to prevent stretching, shrinking, and fading. The fibers can be weakened when excessive heat and harsh detergents are used in washing. This causes stretching, shrinking, fading and makes them more prone to rips and tears. Consider using a laundry conditioner to clean your jeans, like The Laundress Denim Wash. Laundry conditioners get your jeans clean while preventing stretching, fading, and fuzz. Get the most out of washing your jeans by allowing your jeans to air dry. Hang them up to air them out and help them maintain their shape and quality for much longer.  Most people will instinctively want to put their jeans in the dryer, which is useful with helping skinny jeans shrink, but not recommended for long or excessive use because of the wear and tear the machine can create. Air dry your jeans whenever possible. To accelerate drying even further, hang your jeans on a clothesline and allow the fresh air to help them dry and revitalize its scent. Be careful that they are not directly exposed to sunlight. If ever you’re feeling your skinny jeans are a little looser than you’d like, put them in the dryer. After hand washing them gently, toss them into your dryer at the highest setting to make the fibers of the denim constrict for a tighter fight when you wear them again.  Be aware that a commercial dryer can cause wear and tear in denim with excessive use so use a dryer at your discretion. If using a commercial dryer is your preference for drying your jeans, toss them in at the lowest setting to cut down some of the potential harm regular use may cause to the look and feel of your skinny jeans.

Summary:
Hand wash your jeans to clean them. Let them air dry. Use the dryer your skinny jeans their stretch back.