Britax Römer Adventure Plus 2 is a high‑back booster designed for 3.5–12 year‑olds (15–36 kg), combining ADAC‑tested “Good” safety with a slim, lightweight shell that fits three seats across. It installs easily with your vehicle’s 3‑point belt, featuring integrated belt guides that auto‑adjust as you raise the 11‑position headrest, plus an adjustable backrest for a perfect fit.