The safety seat adopts the unique solid injection molding frame process and polyurethane foaming process, the product chair back is more ductile, not afraid of impact. The air layer fabric is used for the cushion and back of the seat. It can be simply wiped with a wet towel when cleaning. It feels smooth and is specially designed for baby's delicate skin. Astron+ seats can be adjusted forward 95-1250°, reverse 130-160°, rotate at any 360° with six gears, and the headrest can be adjusted without poles.