Purchased regular Knix panties--not bikini type. Loved that the leakproof pad traveled up to waist in back in the Knix panty. Did not like fit though--left too much cheek hanging out! Bought a pair of panties from Kohls with the leakproof panel in the crotch area only which fit perfectly and was much cheaper. Now I am worried about washing my Knix panties after reading the reviews--should have read them first. I've have a similar pair of panties I purchased from Kohl's last year that just has the immediate crotch lined--not up the back of the panty. It has been machine washed many, many times and still is in great shape and fit. Won't be ordering any more KNIX