I'm looking for a booster to keep in my car for occasional riders. Most riders will be 7 and ride in backless boosters in their own cars. MY DC are still harnessed so I have no clue where to start. TIA
ETA: I'm hoping to have other kids use it in the 3rd row of my Lexus LX 570. Mostly 7 yr olds. DS1 is 38 lbs but he's tiny and most of his friends are much larger. Can I use a backless booster? I'm in NY.