CThe gb Asana35 DLX Infant Car Seat was designed with safety in mind. Its Fit-Loc Protection feature is the easiest and most reassuring way ensure baby's safety. Installation has never been easier with three superior Fir-Loc Proection features! The Belt Tightner grips either the LATCH belt or VEHICLE belt with 10x more force, ensuring tight fit and proper installation. The adjustable Load Leg offers and additional level of protection using the stability of your car's floor. And the easy-to-use latch system quickly locks the seat in place. Fit Loc Protection is deisgned to hold the car seat securely in place. The adjustable Load Leg can be used in any rear seat of your vehicle, even the middle! All features are easy to use and takes less than 30 seconds to engage or disengage.