Thule Baby SupporterA padded supporting structure for younger children who require extra support. It offers support for the child's waist and head, and the headrest is designed to ensure a comfortable fit, whether they're wearing a helmet or not. This product is compatible with all Thule Chariot bike trailers. Adjustable head support to accommodate growing children Custom shaped head support to allow space for the childs helmet Soft and cosy material for younger children