The Nils Body Zone Women's Elvia Contrast Lace Pants are a body hugging legging with a low ride waist perfect for chilly days. Use as a technical underwear or base layer. As an ultra sleek lightweight baselayer the Elvia Pant features the new age technical fiber Tencel, the controlled nano-fibril structure of Tencel makes the fiber hydrophilic, moving moisture away from the body, keeping you cool when the temperature is hot, and warm when itís cold. Fabrics made from Tencel resist wrinkling, excessive shrinkage, inhibit bacterial growth and are washable. The Elvia Pant has the natural softness and comfort of cotton, the luxurious hand and luster of silk, the durability of a synthetic, and the fluid drape and color richness of rayon. The Elvia Pant features wide lace detail at waist hem.