Calf support extends to provide up to 2 inches of supplemental legroom for rear-facing rest and further support when forward-facing The 4Ever is simple to install using LATCH, substantially easier than the average seat for belt installation, and it has super easy-to-use features similar to a non-rethread harness height adjustment. https://flenzy.store/70-qt-olive-green-wheeled-rolling-cooler-ultimate-outdoor-companion/