Adult unisex Warner Bros. The PJs similar to the ones worn by Blake Lively! Buddy the Elf flannel PJ pants. Thick, soft and warm flannel comfy pants in a variety of sizes. Pattern is called "Elf Fairisle" Brushed cotton flannel with encased stretch waist band and adjustable draw cord. Side pockets. Not the long johns style. STANDARD 100 by OEKO-TEX® New in package. See photo of Hanna Andersson size chart for measurements.