Tuva LX Harnessed Booster Seat - Onyx
The new Maxi-Cosi Tuva LX Harnessed Booster Seat is designed for safety, comfort, and style, making it the ideal car seat for children from 6 months to 8 years of age approx. As the most compact forward-facing car seat on the market, it offers generous seating space to ensure comfortable travel for your little one. Installation is simple and secure with the SMART Lock belt system, while the 9-position headrest and simultaneous harness adjustment allow for easy, on-the-go adaptability without needing to remove the seat. Packed with premium features, the Tuva LX includes patented Air Protect side-impact technology and GCELL torso protection for trusted safety. Comfort is enhanced with cool wicking fabrics, a two-position recline, and a premium insert, keeping your child cosy in any season. Additional Maxi-Cosi features like magnetic harness holders, an adjustable crotch buckle, and dual cup holders make every journey smoother for both you and your child.
The new Maxi-Cosi Tuva LX Harnessed Booster Seat is designed for safety, comfort, and style, making it the ideal car seat for children from 6 months to 8 years of age approx. As the most compact forward-facing car seat on the market, it offers generous seating space to ensure comfortable travel for your little one. Installation is simple and secure with the SMART Lock belt system, while the 9-position headrest and simultaneous harness adjustment allow for easy, on-the-go adaptability without needing to remove the seat. Packed with premium features, the Tuva LX includes patented Air Protect side-impact technology and GCELL torso protection for trusted safety. Comfort is enhanced with cool wicking fabrics, a two-position recline, and a premium insert, keeping your child cosy in any season. Additional Maxi-Cosi features like magnetic harness holders, an adjustable crotch buckle, and dual cup holders make every journey smoother for both you and your child.
The new Maxi-Cosi Tuva LX Harnessed Booster Seat is designed for safety, comfort, and style, making it the ideal car seat for children from 6 months to 8 years of age approx. As the most compact forward-facing car seat on the market, it offers generous seating space to ensure comfortable travel for your little one. Installation is simple and secure with the SMART Lock belt system, while the 9-position headrest and simultaneous harness adjustment allow for easy, on-the-go adaptability without needing to remove the seat. Packed with premium features, the Tuva LX includes patented Air Protect side-impact technology and GCELL torso protection for trusted safety. Comfort is enhanced with cool wicking fabrics, a two-position recline, and a premium insert, keeping your child cosy in any season. Additional Maxi-Cosi features like magnetic harness holders, an adjustable crotch buckle, and dual cup holders make every journey smoother for both you and your child.
The new Maxi-Cosi Tuva LX Harnessed Booster Seat is designed for safety, comfort, and style, making it the ideal car seat for children from 6 months to 8 years of age approx. As the most compact forward-facing car seat on the market, it offers generous seating space to ensure comfortable travel for your little one. Installation is simple and secure with the SMART Lock belt system, while the 9-position headrest and simultaneous harness adjustment allow for easy, on-the-go adaptability without needing to remove the seat. Packed with premium features, the Tuva LX includes patented Air Protect side-impact technology and GCELL torso protection for trusted safety. Comfort is enhanced with cool wicking fabrics, a two-position recline, and a premium insert, keeping your child cosy in any season. Additional Maxi-Cosi features like magnetic harness holders, an adjustable crotch buckle, and dual cup holders make every journey smoother for both you and your child.
in 3 offers
The lowest price for Tuva LX Harnessed Booster Seat - Onyx right now is $449.99 at Baby Kingdom, compared across 3 retailers.
The all-time low was $399.00 on 23 June 2026 — today's price is 13% above the lowest ever. That's a little above the best price we've seen.
Prices last updated 19 Oct 2026.
Last updated at 19/10/2026 07:16:13
Maxi Cosi Tuva LX Harnessed Forward Facing Car Seat
Free delivery
Maxi Cosi Tuva LX Booster Seat, Onyx
Delivery between Wed – Fri $24.95
Tuva LX Harnessed Booster Seat - Onyx
Delivery between 21–26 Oct $25
| Harness Type | Harnessed |
| Safety Features | GCELL torso protection, GCELL® technology (head and torso protection), Patented Air Protect side-impact technology |
| Installation Method | SMART Lock belt system |
| Seating Direction | Forward-facing |
| Seating Type | Booster |
Maxi Cosi Tuva LX Harnessed Forward Facing Car Seat
Free delivery
Maxi Cosi Tuva LX Booster Seat, Onyx
Delivery between Wed – Fri $24.95
Tuva LX Harnessed Booster Seat - Onyx
Delivery between 21–26 Oct $25
| Harness Type | Harnessed |
| Safety Features | GCELL torso protection, GCELL® technology (head and torso protection), Patented Air Protect side-impact technology |
| Installation Method | SMART Lock belt system |
| Seating Direction | Forward-facing |
| Seating Type | Booster |
