I am a big fan of the sport series! The material does actually feel like a pair of leggings, which is so interesting. Full disclosure, I've actually used some of the other scrunchies from supercrush for working out previously because I love them so much - so I'm very excited that they have a full line now dedicated for working out! It has held up in the vast majority of workouts I have done, including barre, pilates, yoga, and dance. The one time it shifted around a bit was during a dance class, but I was quite vigorously whipping my hair around, so I don't think that counts ;) all in all, great scrunchie and I know I will be using it a lot in the future. The size is perfect for me and my thicker hair, and my mom got the skinny size which was perfect for her finer hair. Thank you supercrush, delivering amazing quality as always!!! >3