Absolutely no slipping which is precisely what I was looking for. All the other grip socks sticky bottom end short of the heel right where you need it for bridging in Pilates. NOT with these, they’ve got a style going all the way up your heel, worth every penny. I feel safe and secure, it’s helped my confidence and form. My only regret is I got the in black and they look kinda spiderweb like and I wish I’d pick a cute color, but that was my bad! The product is a gem and now I wear nothing else. They wash up like new easy peasy over & over.