Narrow backless booster seats for three across
Which backless booster seats are narrow enough to possibly fit three across in a back seat?
Britax UpNGo Click Backless Booster Car Seat: The seat is 17.1 inches wide, which Britax calls its SpaceSaver design. Britax says the slim seat is designed to fit three across in most vehicles but cannot guarantee three-across fitment in every vehicle. Britax UpNGo Backless Booster Car Seat: Mega Babies lists dimensions of 9 inches high, 15.5 inches deep and 17.1 inches wide; Consumer Reports lists overall width as 17 inches, so the sources differ on width.
| Product | Why | Width | Three-across fit | Weight |
|---|---|---|---|---|
| 1. Britax UpNGo Click Backless Booster Car Seat sold by megababiesusa.com | Britax says the slim seat is designed to fit three across in most vehicles but cannot guarantee three-across fitment in every vehicle. | The seat is 17.1 inches wide, which Britax calls its SpaceSaver design. listing | Britax says the slim seat is designed to fit three across in most vehicles but cannot guarantee three-across fitment in every vehicle. listing | The booster weighs under 5 lbs. listing |
| 2. Britax UpNGo Backless Booster Car Seat sold by megababiesusa.com | Mega Babies lists dimensions of 9 inches high, 15.5 inches deep and 17.1 inches wide; Consumer Reports lists overall width as 17 inches, so the sources differ on width. | Mega Babies lists dimensions of 9 inches high, 15.5 inches deep and 17.1 inches wide; Consumer Reports lists overall width as 17 inches, so the sources differ on width. guide | - | Mega Babies lists the seat weight as 3.1 lbs; Consumer Reports lists 5 lbs, so the sources disagree. guide |
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Written 2026-10-18T10:41:27.077Z.
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