Cosco Juvenile Highrise Booster Car Seat - Lorraina At just six pounds, the Cosco Juvenile Highrise Booster Car Seat is so lightweight and compact that you can take it just about anywhere. And itÂs perfect for growing children with a weight capacity from 30 to 100 pounds. Plus, with features like padded armrests and cup holder, itÂs a gear product even your child wonÂt want to be without! Why YouÂll Love It: ItÂs convenient and lightweight - the perfect traveling companion! Features Belt-positioning booster Flip-down compartment with cup holder Padded armrests LATCH not required Lightweight design for easy traveling Age/Height/Weight Limits: From 30 to 100 lbs.