The Knox is the first convertible seat to feature UPPAbaby's SMARTSecure system including an indicator window that turns from red to green when the seat is correctly installed. With a focus on safety, the Multi-Directional Tether reduces injury potential by 45% when used in rear-facing mode. Energy Response Technology delivers unparalleled side impact protection from top to bottom with an eight-position Active Support Headrest, Side Impact Pods and an Impact Dispersion Zone of EPP foam throughout the seat.

The KNOX is the first child restraint to feature innovative Koroyd technology integrated into the base designed to absorb the maximum amount of energy from an impact.