They do not lose their shape and so far the elastic that is all around the fitted sheet, is nice and tight! Soft, heavy duty and color matched as advertised I Searched and searched and found the BEST! Win, Win Soft and Strong sheets!!
ic and the sides are plenty deep for my deep pillow top mattress!!! I've had them long enough to wash them a few times and they come out of the washer perfectly and once dried are like brand new