When I opened the package my first thought was, these look like old-fashioned bloomers. I think it's the 9" inseam. I fully expected the crotch to droop and the occasional peek-a-boo of the lace. I was prepared to accept this because the length promised no riding up for that dreaded chub-rub. All my assumptions were pleasantly proven wrong the first time I wore them. I washed them firs; they washed and line-dried perfectly. I slipped them on over my undies (I personally wear undies with pettipants) and put on a simple knee-length dress. The length worked perfectly although any showing of the lace would be acceptable. I never once had the legs roll (which sometimes happens with another nylon pettipants I own with a shorter inseam). I like these so much I'm going to purchase more.