Women's Project Rock No-Slip Waistband Printed Ankle Leggings Two of my favourite features on the Women's Project Rock No-Slip Waistband Printed Ankle Leggings ($65) are the no-slip waistband and the vents located on the sides of the legs as well as the backs of the knees. Image Source: underarmour.com Women's Project Rock No-Slip Waistband Printed Ankle Leggings $65 from underarmour.com Buy Now