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The UPPAbaby KNOX is a convertible car seat designed with advanced safety features, smart installation technology, and comfort that grows with your child from toddlerhood to early school years.
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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.
- SMARTSecure installation system with red-to-green indicator for visual confirmation
- Integrated Koroyd base for superior crash energy absorption
- Multi-Directional Tether for both rear- and forward-facing installation
- No-rethread harness adjusts along with the eight-position headrest
- Two-piece fit inlay offers flexibility for growing babies
- EPP foam-lined shell for enhanced impact dispersion
- Side Impact Pods provide added energy absorption in side collisions
- Active Support Headrest grows with your child
- Adjustable base with multiple foot positions for proper leveling
- Color-coded belt paths and robust tensioning clips simplify installation
- Integrated bead level indicators on both sides
- Storage pockets for keeping harness buckles out of the way
- Removable cup holder included
- Machine-washable seat fabric for easy maintenance
- Merino wool fabric option (Jordan) that is naturally fire-resistant, temperature regulating, and free of chemical flame retardants
- Suitable for children 14 - 65 lbs, or up to 49" tall [Approximately: 1-6 years]
- Infant Insert: 14 - 25 lbs
- Rear-Facing: 14 - 40 lbs
- Forward-Facing: 25 - 65 lbs.
- Height: Up to 49" (124.5 cm)
- Car Seat Weight: 35.3 lbs
- Through its innovative use of Merino wool, the JORDAN KNOX passes deferral safety standards without the use of fire retardant chemicals. The wicking properties of the Merino wool keeps kids cool on hot days and warm on cool days.
UPPAbaby Car Seat Overview
The Ultimate Convertible Car Seat Buying Guide
Best Convertible Car Seats of 2025
What is Flame-Retardant Free Baby Gear?
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.
- SMARTSecure installation system with red-to-green indicator for visual confirmation
- Integrated Koroyd base for superior crash energy absorption
- Multi-Directional Tether for both rear- and forward-facing installation
- No-rethread harness adjusts along with the eight-position headrest
- Two-piece fit inlay offers flexibility for growing babies
- EPP foam-lined shell for enhanced impact dispersion
- Side Impact Pods provide added energy absorption in side collisions
- Active Support Headrest grows with your child
- Adjustable base with multiple foot positions for proper leveling
- Color-coded belt paths and robust tensioning clips simplify installation
- Integrated bead level indicators on both sides
- Storage pockets for keeping harness buckles out of the way
- Removable cup holder included
- Machine-washable seat fabric for easy maintenance
- Merino wool fabric option (Jordan) that is naturally fire-resistant, temperature regulating, and free of chemical flame retardants
- Suitable for children 14 - 65 lbs, or up to 49" tall [Approximately: 1-6 years]
- Infant Insert: 14 - 25 lbs
- Rear-Facing: 14 - 40 lbs
- Forward-Facing: 25 - 65 lbs.
- Height: Up to 49" (124.5 cm)
- Car Seat Weight: 35.3 lbs
- Through its innovative use of Merino wool, the JORDAN KNOX passes deferral safety standards without the use of fire retardant chemicals. The wicking properties of the Merino wool keeps kids cool on hot days and warm on cool days.
UPPAbaby Car Seat Overview
The Ultimate Convertible Car Seat Buying Guide
Best Convertible Car Seats of 2025
What is Flame-Retardant Free Baby Gear?
Frequently Bought With KNOX Convertible Car Seat
Absolutely love this car seat! It’s so easy to get my baby in and out. It does sit quite high up, and blocks my blind spot in my Honda Civic, but it won’t be an issue once we upgrade to an SUV. My baby seems very comfortable in it
Please with the merino fabric and glad my bubs can be comfortable on long drives
The company seems very needy. It wants feedback, and I haven’t even installed the car seat yet.
It is weird to put my baby in when facing rear. Unfortunately, not loving it so far.
Love the seat. This is our second Knox. We have our first seat in a ID 4 and this one is in a Mitsubishi Lancer. Seat fits in both well but the Lancer is a bit more awkward to get our son in and out of the seat.