This product is now discontinued by Britax and no longer available. Britax Adventure High Back Booster from 15kg to 36kg. The Adventure is one of the slimmest HBB so it is a great option for 3 across. Side impact protection Seat belt guide correctly positions the 3-point seat belt over the child's shoulder and pelvis Backrest adjusts to allow installation in a wide range of cars Easily accessible seat belt path Easy to transfer between cars Softly padded and washable cover Pull out drink holder and snack tray Dimensions (H x W x D): 67 – 85 x 44 x 44 cm Weight: 3.9kg