UPPAbaby Knox Convertible Car Seat


UPPAbaby Knox Convertible Car Seat - Jake Item is available for preorder.

Jake and Jordan Knox is available for order if showing out of stock and on backorder. ETA 7-10 days . Please feel free to call the store directly to confirm 

The KNOX is the first convertible seat to feature UPPAbaby's SMARTSecure system including an indicator window that turns from red to green when the seat is correctly installed. With a focus on safety, the Multi-Directional Tether reduces injury potential by 45% when used in rear-facing mode.

Energy Response Technology delivers unparalleled side impact protection from top to bottom with an eight position Active Support Headrest, Side Impact Pods and an Impact Dispersion Zone of EPP foam throughout the seat. The KNOX is the first child restraint to feature innovative Koroyd technology integrated into the base designed to absorb the maximum amount of energy from an impact.

Key Features:

  • SMARTSecure® System with red-to-green tightness indicator provides visual confirmation the car seat is installed correctly
  • Koroyd® technology integrated into the base creates an effective crumple zone protecting the child from impact forces
  • Multi-Directional Tether for rear and forward-facing travel reduces seat rotation and stress on the child’s head and neck upon impact
  • Two-piece fit inlay allows for flexibility and proper fit
  • No-rethread harness adjusts with eight-position headrest
  • Side Impact Pods for additional impact absorption
  • Active Support Headrest that grows with your child
  • EPP foam between the inner and outer shell ensures forces are absorbed into the seat
  • Color coded belt paths with robust tensioning clips
  • Multi-position, adjustable foot for leveling
  • Storage pockets for harness buckles
  • Bead level indicators on both sides of the seat
  • Removable cup holder included
  • Removable and washable seat fabric
  • One naturally fire resistant option through innovative use of Merino wool


  • 14-65 lbs (6.4-29.5 kg), Approximately: 1-6 years
  • Infant Insert: 14-25 lbs. (6.4-11.3 kg)
  • Rear-Facing: 14-40 lbs. (6.4-18.1 kg)
  • Forward-Facing: 25-65 lbs. (11.3-29.5 kg)
  • Height: Up to 49" (124.5 cm)
  • Dimensions: 23.8” L x 18.8” W x 27.4–32.5” H (height reflects headrest in lowest and highest positions)

Click Here to learn more about the UPPAbaby Knox Convertible Car Seat including installation instructions