The Cuddl Duds Fleecewear With Stretch Legging is their warmest layering option. Featuring a body hugging fit and soft fleece material, these leggings will keep you warm when you need it most. Leggings, Great for layering, Constructed with fleece material, Body hugging fit, Modern-rise, Comfortable waistband, Spandex blend enhances movement, 94% Polyester, 6% Spandex.