Slimmest convertible carseat?

What is the slimmest convertible car seat??I have 3 kids. 2 forward facing, 1 is rear facing in an infant seat rn so looking to find a convertible seat to fit him rear facing for the next few years. Something slimmer than a safety 1st grow and go. I have one and tried that- she too thicc😂


Graco sells a slim fit convertible car seat. I have one.

Car Seats for the Littles is the best group to ask in!