I’ve been on the search for months for seamless underwear that does not roll down when I’m working out. And underwear that covers all my parts without something slipping out during a workout. I tried many brands, wasted a lot of money and nothing really worked until I decided to give negative a try and I am absolutely obsessed. I have worked out in these thongs several times and they never roll down and stay in place. The two negative things are, it’s not made for girls with short torsos. I have a short torso, and they come up high on me, second, the price- they are very expensive. But, I do love the quality.