We have the Ride Safer vest. Actually my niece used it 4 years ago (older model) and now my 4 yo uses it whenever he's in my sister's car. My son is too small/light for a Bubble bum or Mifold. I think it's good, light and safe. For airplane travel we have a CARES harness. If your child is on the larger size, I don't think you'll get the value out of the WayB because you'll switch to a no back booster sooner.
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