The Ubeybi Head Protector provides the perfect support for baby's head and aids in preventing flat head syndrome. New-borns and toddlers are in the sitting stage of and this liner could be used for baby in all-standard and jogging strollers and also in their travel bed. The outer fabric is made of breathable cotton and helps wick sweat and odour. This head protector is perfect for support for newborn to toddler.