*Returns not accepted on any opened, used, or defective product. Contact manufacturer directly for further defective products/parts.  From Cybex, this car seat features: Ergonomic recline: Ergonomic design helps reduce organ compression and supports a natural posture, featuring a 45% flatter recline* that adjusts the backrest and extends the leg rest. Reduces crash forces by up to 30%**: The Anti-Rebound Base with Load Leg absorbs energy and helps reduce crash forces on your child. Installation in seconds: One-Click Rigid LATCH system ensures a secure fit with minimal effort, giving you confidence that your seat is properly installed every time. Real-time safety alerts: Sensor Safe Technology sends mobile app notifications if the chest clip is unbuckled, the back seat becomes too hot or cold, or if your child is accidentally left behind. Side-impact protection: Linear Side-Impact Protection (L.S.P.), working with the Energy-Absorbing Shell, disperses crash forces away from your child. Greenguard Gold Certified: Meets rigorous standards for low chemical emissions, helping create healthier air quality around your child. Safety tested: Fully compliant with new FMVSS 213 side and front-impact safety standards for reliable protection and peace of mind. Grows with your child: 12-position height-adjustable headrest with integrated harness ensures a snug fit as your child grows. Airflow for comfort: Perforated shell and mesh fabrics allow for all-around ventilation to keep your child cool. Oversized sun canopy: UPF50+ adjustable canopy offers full coverage and protection from harmful sun rays. Fire-retardant chemical-free fabric: Made with naturally flame-resistant materials that meet federal safety standards—without added chemical treatments. Travel system compatible: Pairs seamlessly with CYBEX strollers for a convenient travel system with ergonomic recline. Easy-in buckle pad: Keeps the harness buckle forward, making it easier to place your child in the seat and secure them. European belt path: Allows safe, secure installation without the base—perfect for taxis, travel, or quick trips. Removable infant insert: Provides proper fit and support for newborns from 4–11 lbs. FAA-compliant for aircraft use: Approved for safe installation on airplanes without the base, making travel easier. Easy to clean: Machine-washable fabrics simplify cleanup from spills, crumbs, and everyday messes. *As compared to the upright position**As compared to the same car seat without this feature Seat Pad: 57% Polyether Foam Pad, 43% Polyester Fiber Shoulder Pads & Buckle Pad: 100% Polyether Foam Headrest: 50% Polyester Fiber, 39% Polyether Foam Pad, 11% Olefin Foam Pad Infant Insert: 52% Polyester Fiber, 48% Polyether Foam Pad Backrest: 52% Polyester Fiber, 48% Polyether Foam Pad Imported.