If you're coming from polyester yoga wear, the feel of the fabric will be the first big surprise with these leggings. There is a wonderful rough and textured finish, but tons and tons of stretch while still keeping that natural fiber feel. The waistband is amazing and just like the best hug. I'd say the Mediums were a little long for me (I'm 5'6") but I don't mind a little stylish gathering at the ankles. My waist is 32" and my hips are 39" and the Mediums fit well all around - never too tight or two loose. I'm also going to try a size Small in the future to see if I like the extra compression. After a lot of movement sometimes these leggings slip down on the waist and hips but I figure once I break a sweat everything will stay in place. The olive color is gorgeous and looks good with everything. I expect to wear these leggings a lot.