mifold® the Grab-and-Go booster seat® is the most advanced, compact and portable child car safety seat. It's more than 10 x smaller than a regular booster and just as safe. mifold works in the exact opposite way to a traditional booster seat, instead of lifting the child up, mifold holds the seatbelt down.mifold is great for: Taxi's, carpooling, 3-in-a-row, rental cars traveling, grandparents, and big kids feeling babyish. mifold is so small that kids can keep one with them at all times. Our hope and vision is for a child restrain for every child, in every car, on every journey, at every time.