Where has this product been all of my thigh-rubbing life? Bike shorts are too warm and the lingerie shorts ride up on me constantly. It took me a while to find 'the spot' on each leg, but once I did, these babies stay put ALL DAY, and I walk constantly for my job. I have both the lace and the 'unisex'. The unisex makes a swishing sound like pantyhose, and seems a tad bit warmer, however I suspect they will last longer then the lace. The lace is prettier, and less dorky if someone catches a glimpse. I also forgot one day and put lotion on my thighs, and that was the only time they rolled on me. Lesson learned. Measure your thigh - I fell between 2 sizes, and ordered down.