Zimmerli's light grey Pureness pajama pants are crafted of stretch jersey. Knit from natural moisture-absorbing beech fibers, the Pureness Collection's soft, breathable fabric lies flat against the skin. From the Pureness Collection. Elasticized drawstring waistband. Side on-seam pockets. 12" rise, 31" inseam, 15" leg opening (approximately). Pulls on. Ties at waist. Available in Light Grey. 95% modal, 5% elastane. Machine wash. Made in Switzerland. Our model is 5'10"/178cm and wearing a size Small.