We all have a favorite pair that fits like an old friend. When you buy a new pair made of untreated raw denim, the denim aficionados recommend wearing them for six months before washing. Why? It takes wear to break down the super-stiff denim, and during the process the fabric actually starts to conform to your shape. When you do wash (or have us expertly wash or clean your denim), turn inside out, use cold water in a gentle cycle. If you want them to fade, use hot water. Lay flat or hang upside down to air dry, avoid a hot dryer. Then lay the jeans on a flat surface, fold in half from left to right. Grab the stacked jean legs and fold them in half so the bottom lines up with the waistband. Fold in half one more time and store in an uncrowded drawer or shelf.
From:: Jeans classics.