From energetic elementary school kids to independent pre-teens, the ALTA delivers proper seat and belt positioning with style, comfort and ease. For parents who've trusted the UPPAbaby name from infancy with the MESA infant seat, the ALTA introduces the next stage of safety and comfort for your [growing] little one. Advanced safety features like the SecureFit™ belt routing system Rigid LATCH connectors and Side Impact Pods will keep your child safe while they ride in style in one of four gorgeous fashions. Features: Buckle up. Move on. Our SecureFit™ belt routing system with lap belt positioner ensures proper fit for the lap and shoulder belt while preventing slippage. Grows with them.The seven-position, Active Support Headrest accommodates growing children. Protects heads with safety smarts. Specialized foams provide added side impact protection Lock in security. Rigid LATCH connectors secure the booster to the vehicle seat guaranteeing proper alignment and positioning for everyday use Positioned on the side of shell, the Side Impact Pods absorb and disperse crash forces - A small feature that makes a big difference The spacious design paired with dual armrests provides added comfort for your child during the ride. The ALTA includes a removable cup holder that can attach to either side of the seat. Removable and washable seat fabric. When spills happen, the seat base fabric quickly zips off for easy cleaning. UPPAbaby offers a LIMITED LIFETIME WARRANTY on all car seats representing our commitment to child passenger safety. Specifications: Approximately 6–10 years old Suitable from 40–100 lbs, and 38–57” in height Dimensions: 20” L x 19” W x 25.5–33” H (height headrest in lowest and highest positions)