Have and will continue to use these culotte slips for many years, especially during the hot, sticky days of summer.  Bought several sets for me and my mother (who had been asking for these since her sister "stole" them from her last summer) to replace our old ones in 9-inch inseam length.  Kept those for my mother in that length, but exchanged mine for the 4-inch inseam because of my skirt lengths (usually to the knee) in the summer.  The slips are comfortably loose, help prevent thighs chafing, keep you cooler, and bring a cleaner line and cover to light or sheer skirts. Since they fit loosely the 4-inch inseam slips fall to mid thigh; while the 9-inch fall to the knee.  The lace adds a nice touch--not scratchy or stiff; and they launder in a breeze.