BubbleBum Backless Booster Car Seat – Inflatable, Portable Travel Booster for Kids 40–100 lbs, Ages 4–11, Fits 3 Across, Rideshare & Carpool, FMVSS 213 Certified – Rainbow

Are your kids big enough for booster seats? Maybe not the 3yo but likely the 6yo. If they’re big enough, they’re also big enough for travel booster seats! We have an inflatable one from Amazon that’s made an enormous difference in our own travels. Hang on I’ll link to it. https://a.co/d/0872jsGW