First off, let me start by saying I have thick, coarse, curly hair, and lots of it. I've tried everything from regular hair ties, invisi bobbles of all sizes and then.... my sister introduced me to these. My sister has long, gorgeous, thick hair that goes all the way down her back and no hair tie could ever hold up all of her hair. Then, just like magic, the two of us met our matches. The tiy hairties take the cake. For me, 2 loops works best for my curly hair, but my sister needed one whole tiy for her hair. No hair tie in the history of the world has been able to handle both of our heads of hair, all day long, at amusement parks, on hikes, working in the garden. You name it, these hairties have stood the test of thick hair, crazy activity and WON. Every. Single. Time. These hairties are an investment, but man. They are an investment that every girl should make for herself. Thank you tiy for making one amazing product that doesn't disappoint!