Why buy methe britax adventure group 23 car seat is an ergonomically designed high back booster seat with deep wings for side impact protection lightweight and portable its easy to move from car to car and has multiple height positions to adjust to your growing childabout megroup 2473 highback booster seat 15 36kg 47 4 11 years 40approx41forward facing car seatadjustable height 67 85 cm3 point seat belt fittingpadded side wings for side impact protectionheight adjustable hea