I've owned thigh high stockings that were supposed to stay up on there own before. They were always either way too tight or they would continually slide down my leg. The silicone in these stockings works perfectly. The stockings aren't too tight and they stayed in place for hours. They are extremely comfortable. I wear a size B in pantyhose & bought the same size in these stockings. The lace is very pretty. You can wear these out for an evening and feel confident that you won't be spending your night pulling them up constantly. Also, they don't pull or run easily which everyone can appreciate. These stockings are excellent and worth every penny.