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ALTA Safety, Elevated. The UPPAbaby ALTA Children's adjustable booster seat is perfect for energetic kids to independent pre-teens. The ALTA delivers proper belt positioning with style, comfort, and ease!

  • Suitable for children approximately between 6-10 years old. Suitable from 40-100lbs, and 38"-57" in height.
  • Secure Fit belt routing system with lap belt positioner ensures proper fit for the lap and shoulder belt while preventing slippage.
  • The ALTA booster seat will grow with your child! The Active Support Headrest has seven positions and added side impact support with specialized foams.
  • Side Impact Pods above and disperse crash forces.
  • Rigid LATCH connectors secure the booster to the vehicle seat guaranteeing proper alignment and positioning for everyday use.
  • Spacious design is paired with dual armrest that provide added comfort for your child during rides.
  • Hydrate on the go with include ALTA removable cup holder. Attached to either side of the seat.
  • Removable and washable seat fabrics quickly zip off if ever a spill should happen.

    Technical Specifications - Dimension/Weight


    • Dimensions: 20" L x 19" W x 25.5"-33" H (headrest in lowest and highest positions)