DKNY Womens Summer Sleepwear: Lighweight Pajama Crop Pants 5% spandex Very high quality fabric: 95% rayon, 5% spandex; Machine washable. 100% authentic DKNYC (by DKNY) merchandise, satisfaction guaranteed. Fabric covered elastic waistband with drawstrings for added comfort. Relaxed styling provides a comfortable and casual fit.