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 34 offers
The lowest price for Tuva LX Harnessed Booster Seat - Onyx right now is $429.00 at Buy for Baby, compared across 34 retailers.
The all-time low was $399.00 on 23 June 2026 — today's price is 8% above the lowest ever. That's a little above the best price we've seen.
Prices last updated 30 Oct 2026.
Last updated at 30/10/2026 19:47:21
Maxi Cosi Tuva LX Harnessed Forward Facing Car Seat
Delivery $63.31
Maxi Cosi Tuva LX Booster Seat, Onyx
Delivery between Tue – Thu $24.95
Maxi Cosi Tuva LX Car Seat - Onyx (12m - 8yrs)
Delivery between 3–9 Nov $21.75
Maxi Cosi Tuva LX Harnessed Booster Seat, Onyx
Delivery between 3–9 Nov $16
Maxi Cosi Tuva Lx Harnessed Forward Facing Car Seat - Onyx Car Safety
Delivery between 6–12 Nov $79.81
Maxi Cosi Tuva LX Harnessed Booster Seat, Onyx
Delivery between 3–8 Nov $59
Maxi Cosi Tuva LX Harnessed Booster Seat
Delivery between 9–13 Nov $72.55
Maxi Cosi Tuva LX (Luxury Edition) Harnessed Booster Seat-Onyx
Free delivery between Mon – Thu
Maxi-Cosi Tuva LX Harnessed Booster (1 - 8 Years) - Onyx | the memo
Delivery $50
Maxi Cosi Tuva LX Harnessed Booster Seat - Onyx (26070)
Delivery between 4–12 Nov $35
| 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
Delivery $63.31
Maxi Cosi Tuva LX Booster Seat, Onyx
Delivery between Tue – Thu $24.95
Maxi Cosi Tuva LX Car Seat - Onyx (12m - 8yrs)
Delivery between 3–9 Nov $21.75
Maxi Cosi Tuva LX Harnessed Booster Seat, Onyx
Delivery between 3–9 Nov $16
Maxi Cosi Tuva Lx Harnessed Forward Facing Car Seat - Onyx Car Safety
Delivery between 6–12 Nov $79.81
| 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 |
