Safety 1st introduces the first infant car seat with Air Protect + technology: Positively the safest choice in full body protection. The onBoard35 Air+ Infant Car Seat features our new Air Protect + to keep children from 4-35 pounds safer in the car. Air Protect + combines the advanced protection of our Air Protect® cushion system with patented GCell HX™ foam designed with hexagonal shapes for superior protection around the torso. TOGETHER they provide full body side impact protection. In addition to Air Protect +, the onBoard35 Air+ is LATCH equipped with an adjustable stay-in-car base with LATCH storage. We've also included a customizable infant insert to give a safer snug fit to tiny travelers.