If machine washing, use cold water or a delicate cycle to avoid shrinking. Turn garments inside out before washing to protect the outside and help prevent designs from fading. Close zippers, buttons, and velcro fasteners to reduce the risk of damage. You can also sort cotton by color and wash it separately from other fabrics to avoid shrinking. After washing, gently stretch the fabric to help it regain its shape.

* Drying 
Air drying is best to minimize the risk of shrinking. You can hang clothes outside or by an open window, or use treated wooden hangers to reduce stress on the fabric. If machine drying is necessary, use low to moderate heat. 



* Ironing 
Cotton wrinkles easily, so iron it while it's still a little damp.