ribbed knit striped for you to replace. Great for pilates, ballet dance, barre, casual wear, gym, fitness, 80s costume play, sports, Stay warm through all sorts of activities, fit for women and girl, nice stretchy, not too thick or too thin. Open heel leg warmers are acrylic fiber, breathable, lightweight, soft, resilient and warm to wear. open heel make these long leg warmers do not slip down. They can fit your feet well and will not make you feel uncomfortable. Fit for most jeans, leggings.