This 2-stage belt-positioning booster seat pairs superior safety with stylish design. Cool Flow mesh fabric & plush foam padding create a cool, comfortable ride. It easily converts from high back to backless, so your child rides safer, longer. 3 layers of side impact protection include an energy-absorbing shell, side cushions, & 10-position quick-adjust headrest that grows with your child up to 63″. 2 dishwasher-safe cupholders & built-in arm rest keep your big kid happy and comfortable.