RELAXED FIT: Our most generous pants fit, relaxed through the hip, thigh, and leg for comfort while sleeping. Sits below the waist SOFTLY BRUSHED FLANNEL: Soft, breathable, and tightly woven, this flannel is comfy and durable. Made with 100% brushed cotton ESSENTIAL SLEEP PANT: The perfect sleep pant for snuggling up and relaxing whether sleeping or lounging around the house. Style back to Amazon Essentials Men's Slippers to keep your feet cozy and warm DETAILS: Featuring an elasticated waistband with a drawcord for ease and comfort. Button fly closure and side pockets to hold your small essentials INSEAM: 30 1/2” (77.5cm) on UK size M Certified STANDARD 100 by OEKO-TEX, which requires textiles-based products to be tested against a list of 1,000+ chemicals, to limit those which may be harmful to human health