narrow harness booster seat

Graco Tranzitions 3-in-1 Harness Booster Car Seat

Chicco MyFit ClearTex Harness + Booster Seat - Raven: Fits 3 Across, LATCH Compatible, Machine Washable, Cup Holder

Baby Trend Hybrid SI 3-in-1 Combination Booster Car Seat with Side Impact Protection

Safety 1st Boost & Go Booster Car Seat

Graco TurboBooster 2.0 LX Highback Booster Car Seat with Safety Surround

Graco TurboBooster 2.0 Highback Booster Car Seat

Graco Nautilus 2.0 LX 3-in-1 Harness Booster Car Seat - Hex

Chicco Kidfit ClearTex Plus High Back Booster Car Seat

Safety 1st High Back Booster Car Seat Store N Go DLX - High Tide

BubbleBum Inflatable Car Booster Seat - Travel Booster Seat - Black Style

BubbleBum Teleport Booster Car Seat, Kids Seat for Car 40-100 lbs, Telescopic Portable Carseat, - Foldable for Travel, - Black

Baby Trend Ally Newborn Baby Infant Car Seat Carrier Travel System with Harness and Extra Cozy Cover for Babies Up to 35 Pounds, Modern Khaki (2 Pack)