Purchased these for everyday wear.  Being between two sizes, I ordered the larger size.  Seemed a little large when first tried on.  Washed in warm water and medium heat on dryer.  Were fine when next tried on.  During the day they became larger and larger until I couldn't keep them on.  Next tried washing in hot water and hot dryer heat.  They shrank a little bit.  Now with a belt I don't have to worry about them falling off.  I will continue to wash in hot water and dry on high heat.  Might be all right if I had ordered 2 sizes smaller