Britax römer MULTI-TECH III Car Seat For parents who seek maximum safety with extended rearward-facing travel until 25 kg. The versatile MULTI-TECH III enables extended rearward facing travel from 9 kg up to 25 kg, with the option for forward facing installation. The adjustable headrest and harness, and adjustable width positions allow the seat to grow with your child. With installation indicators and optimum side impact protection, the MULTI-TECH III gives parents total safety reassurance.