The mifold Comfort grab-and-go booster seat is designed for kids, aged 4 and up, 40 to 100 lbs, and 40 to 59 inches tall. It is the worlds most compact and portable backless booster seat making it ideal for everyday use and for every adventure! It can fit into a childs backpack, glove box or parents handbag, making it perfect for carpooling, as a travel booster, for ride sharing and much more. mifold Comfort is safety tested and meets FMVSS 213 regulatory standards in the US and is globally regulated for use in every country in the world except Australia. mifold Comfort also features a super comfortable, extra padded Compact Comfort seat cushion, anti-slip pads and easy to fit shoulder and lap belt guides. mifold is narrow enough to fit three in a row across the back seat of almost every car and loved by older kids thanks to its cool and discreet design.