Cotton Imported ღSoft&Breathable: Super soft crystal velvet fabric and high-elastic PP cotton filler. ღHead Back Safety Function: Prevent toddlers infant injured suitable for 0-3 years toddler ღAdjustable Plush Straps: Shoulder and chest belts conforms to baby's different size and free to walk,crawl and run. ღAdorable Cartoon Appearance: Deeply loved by babies as backpiece protector pad or toy. ღNotes: The chest strap of the Devil,Deer,Corgi and Lion are separated from the head protector pad. Please refer to the last picture for the installation steps.