The most exciting release here from UPPAbaby is their brand-new UPPAbaby KNOX Convertible Car Seat! For both die-hard UPPAbaby fans and for those of you will become one, you're going to love the new KNOX car seat that is chock-full of all the safety and style features you can want in a car seat. You can tell that the UPPAbaby team did an incredible amount of research and their KNOX does not fall short in any way. SPECS At 23.8" L x 18.8" W x 27.4-32.5" H the INSTALLATION UPPAbaby’s first-ever convertible car seat will feature their SMARTsecure system that ensures a proper installation each time. SAFETY Your child is extra protected in the seat with the Advanced Side Impact Protection, EPP and memory foam headrest,as well as smart SIP Absorbing Pods. There is a passive There nine position no-rethread harness not only for comfot but to keep your little one safe. God forbid a car accident the universal tether reduces seat rotation and stress on your child's head and neck in a front and rear impact. There is also Koroyd’s welded tubes crumple instantly and consistently on impact, absorbing maximum force in a controlled manner, minimizing energy transferred to the child. Parents can rest easy knowing the JORDAN KNOX passes federal safety standards without the use of fire retardant chemicals.