At 9 lbs., the CYBEX Aton G is one of the lightest infant car seats on the market. The Aton G takes safety and comfort seriously with the use of linear side-impact protection, which reduces collision forces in a side impact crash, in-shell air ventilation for natural airflow and a UPF50+ sun canopy. Additionally, the SAFELOCK belt tensioner provides a quick and easy installation. Features: 11-POSITION ADJUSTABLE HEADREST WITH NO-RETHREAD HARNESS: integrated harness adjusts with the headrest for a proper fit as your child grows; LINEAR SIDE IMPACT PROTECTION: integrated into the shell to effectively reduce collision forces on the child in a side impact crash; LIGHTWEIGHT CONVENIENCE: only 9 lbs.; IN-SHELL AIR VENTILATION: provides natural airflow to keep your child comfortable and cool in warmer temperatures; FLAME-RESISTANT FABRIC: passes federal safety standards without the use of added fire-retardant chemicals; XXL UPF50+ SUN CANOPY: protects your child from the sun and elements; EASY INSTALL: SAFELOCK belt tensioner offers quick, simple, and secure belt installation; TRAVEL SYSTEM COMPATIBLE: connects to all CYBEX strollers with included adapters to create a convenient travel system; ERGONOMIC RELEASE: one-handed base and stroller release at the back of the carrier shell; REMOVABLE NEWBORN INSERT: supports babies from 4 to 11 lbs.; EASY-IN BUCKLE: keeps the harness buckle pointing forwards, making it easier to sit your child in the seat and buckle them up; FAA COMPLIANT: allows for infant carrier use during air travel without base; EASY TO CLEAN: machine-washable fabrics; What's In The Box: The Cybex Aton G Infant Car Seat includes: Aton G Infant Car Seat; Infant Car Seat Base; Newborn Inlay; Sun Canopy; Specifications: DIMENSIONS: 26.1" L x 17.5" W x 14.7" H; WEIGHT: 9 lbs (without base); SUITABILITY: From 4 lbs. up to 35 lbs.; Up to 30";.