UppaBaby Alta Booster Seat - Multiple Colors


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Safety, elevated.

From energetic elementary school kids to independent pre-teens, the ALTA delivers proper seat and belt positioning with style, comfort and ease.

Select Your Style
ALTA - Sasha

Buckle up with our SecureFit system

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.

The ALTA grows with your child

Grows with them

The seven-position, Active Support Headrest accommodates growing children.

Protects heads with safety smarts

Specialized foams provide added side impact protection.

The ALTA's LATCH connectors

Lock in security

Rigid LATCH connectors secure the booster to the vehicle seat guaranteeing proper alignment and positioning for everyday use.

A small feature that makes a big difference

Positioned on the side of shell, the Side Impact Pods absorb and disperse crash forces.

ALTA Side Impact Protection pod

Sit back and relax

The spacious design paired with dual armrests provides added comfort for your child during the ride.

Hydrate on the go

The ALTA includes a removable cup holder that can attach to either side of the seat.

The ALTA uses easily-cleaned fabric

Removable and washable seat fabric

When spills happen, the seat base fabric quickly zips off for easy cleaning.

Register to take advantage of the seat's limited lifetime warranty

Our warranty

UPPAbaby offers a LIMITED LIFETIME WARRANTY on all car seats representing our commitment to child passenger safety.

Our collection includes the ALTA, KNOX, and MESA car seats


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)

Key Features

  • SecureFit belt routing system
  • Unique lap belt positioner
  • Rigid LATCH connectors
  • Seven-position Active Support Headrest
  • Side Impact Pods on the side of the shell
  • Specialized foams in the headrest
  • Spacious design accommodates growing children
  • Dual armrests
  • Removable cup holder included
  • Removable, washable fabrics
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