2-in-1 High-Back Booster Seats

Diono 2-in-1 booster seats are belt positioning booster seats that fit your child from 40 - 120lbs and can be used either high-back or backless:

High-Back: Offers side impact protection and head support; recommended for use until your child exceeds the height limit or your booster and fits the adult passenger seat belt without needing an extra boost

Backless: A convenient option when bringing a booster with you on the go; for use only when your child is tall enough to be supported by the adult passenger seat back or head support

In 2024, Diono launched the Connect3 series - the industry’s first ever booster seat meant to fit 3-across in most mid-sized sedans. This slim, 17" wide seat features patented nestling cup holders and a contoured EasyReach™ buckle access point, and is comfortable for your little ones to sit side-by-side. Check out more information about our Connect3 series!