Blue pants. Lightweight, non-stretchy satin fabric. No lining. No zipper. Elastic on waist band. Cold hand wash only. Model is a standard XS and is wearing size XS for this style. True to size. Polyester. A wide silhouette takes these lounge pants from sleep to street in effortless style. It features comfy soft satin fabric, elastic waistband and wide-leg design. This pair can easily be dressed up for errands or down for dreaming the night away.