Not sure if you don't know what a thong is or if I just misunderstand the question, but ALL thongs/g-strings ride up your buttcrack and stay there. They are designed to do that, and there is no other way to wear them. Thongs don't just "consistently" ride up the crack, the "ALWAYS" ride up the crack. And they stay up your crack the entire time you are wearing it. The wedgie doesn't come out. I've worn men's thongs daily for almost 10 years and not once has one ever dislodged itself from between my cheeks. hahaha There is no such thing as a thong/g-string that isn't always up in your buttcrack. It's just what wearing a thong is. The fact that it goes up your crack and stays there is THE defining feature of a thong.