The Car Seat Lady - If you have big kids who still need a 5 point harness (typically because they aren't ready to sit properly in a booster for the whole ride
Cozy N Safe Cozy N Safe Hudson Group 1/2/3 25kg Harness Car Seat - Car Seats, Carriers & Luggage from pramcentre UK
Mythbusting: A 5-Point Harness Is Safer Than a Booster Seat for Older Kids – CarseatBlog
Best 5-point harness car seats for big toddlers | MadeForMums
Cozy N Safe Excalibur 1/2/3 Car Seat with 25kg Harness - Graphite
Cozy N Safe | Hudson 25kg Harness Car Seat | 9 Months to 12 Years
Graco Tranzitions 3 in 1 Harness Booster Seat, Kyte - Car Safety Seat 47406141999 | eBay
MOTHERCARE TULSA ISOFIX HIGH BACK BOOSTER CAR SEAT WITH HARNESS, GREY. RRP £120 5021463957439 | eBay