These leggings are perfect for high intensity training, cross training, or just a comfortable pair of leggings for a cold day! They are very stretchy and move with you, but stay in place. The back has a butt-shaping contour design that makes your butt look absolutely incredible (even those of us with a flat butt!). Only wore them twice. NOT see-through and totally squat proof. The nice v-shape in the front also adds some curves but hides the tummy!