It lacks a no-rethread harness. Not like our other convertible picks, the Foonf does not have a no-rethread harness that’s linked to the headrest, and the harness and headrest can not be adjusted jointly in a single simultaneous movement. Using the tether just isn't optional. Check your vehicle manual to https://jaredwktck.csublogs.com/39738192/the-definitive-guide-to-best-harness-to-booster-car-seats