Junior and baby Buff Products Are Designed for Kids aged 3 to 12 years old. Junior-child-baby size One Size with Head Diameter of 45/56cm. product description the Original Buff has been Updated with the latest fabric technology making it 4 way stretch. The revamped product is made from recycled polyester microfiber obtained from clear plastic recycled bottles supplied and certified by Reprove. Suitable for all weather conditions The original Buff has a up 50 rating. uses junior Buff can be worn as a neckerchief, headband, wristband, mask, hair-band, balaclava, scarf, headband, scrunched, Saharan, pirate cap, beanie and bandana.