These are the sleep pants certified to be free of the allergy exacerbating and skin irritating dyes, metals, and chemicals found in standard pajamas. Available exclusively from Hammacher Schlemmer, they have been certified by Oeko-Tex 100—a 25-year-old international organization that tests textiles for harmful chemicals and substances—to be free of agents known to inflame the epidermis including pesticides, extractable metals, and preservatives such as formaldehyde. They are naturally dyed and contain a skin-friendly pH level that helps maintain your skin’s acid/alkaline balance. 100% Silky smooth satin faille with a jersey knit elastic waistband. Machine washable and dryable. Imported. Blue. S, M, L, XL. (12 oz.)