Looking for a comfortable and safe highback booster that won’t take up too much room? The hifold booster seat for car is the world’s most adjustable booster, with unique “multi-fit” technology that can be adjusted to 243 individual settings. This highback booster car seat is designed for kids aged 4 and up, 40-100 lbs., and 40 to 59 inches tall. The hifold on the go booster seat can quickly fold down to a compact and convenient size for storage. It has a lightweight design and convenient carry strap, too, making it perfect for carpooling, as a travel car seat, for car sharing rides and much more. Keep one in your trunk for unexpected carpool visitors, bring one on your next travel adventure and give one to your children’s grandparents or other relatives and caregivers. hifold portable car seat not only grows with your child, but ensures optimal seatbelt fit and comfort while they grow. It can be adjusted in 4 areas: the seat, body, head width and height, resulting in 243 unique, individual settings to keep your child safe and comfortable. With a booster seat for car this convenient, there’s no reason a child should not be restrained safely on every single car ride! hifold meets or exceeds NHTSA standard FMVSS 213 and is regulated for global use everywhere in the world except Australia. The hifold fit-and-fold booster seat in not an infant seat. hifold does not include and integrated harness and hifold is only suitable for children aged 4-years old and above who are taller than 40" and weigh more than 40 pounds. Please note that the hifold seat is a booster seat. As with most booster seats, hifold uses the vehicle installed adult seat belt to restrain the child and hold the booster seat in place