The Primo Viaggio SIP 5-65 Convertible follows child from infancy through toddlerhood by converting from a rear-facing to a forward-facing car seat. Provides maximum safety and Adjustable Side Impact Protection. The Primo Viaggio SIP 5-65 Convertible provides complete safety and peace of mind to parents of little ones. It offers added safety features like adjustable Side Impact Protection (SIP), a Shock Absorbing Foam Element (SAFE) device, Expanded Poly Styrene (EPS) energy-absorbing foam and an anti-rebound bar. Solid anti-rebound bar for use in rear facing mode. Conveniently folds under the base for forward-facing mode.