Mifold Comfort grab and go booster. Perfect for travel. In like new condition. Introducing mifold Comfort. A must-have booster seat for children aged 4+, 40-100lbs and 40-100" tall. Comfort for every day, compact for every adventure! The world’s most compact backless booster is 10x smaller than a traditional booster, and just as safe. The super comfortable cushioned seat makes it ideal for daily use. mifold is small enough to take almost anywhere, is regulated for global use*, and features anti-slip pads.