Best Narrow Child Booster Seat

Chicco KidFit ClearTex Plus 2-in-1 Belt-Positioning Booster Car Seat, Backless and High Back Booster Seat, for Children Aged 4 Years and up and 40-100 lbs. | Obsidian/Black

UPPAbaby Alta V2 High Back Booster Seat/Seven-Position, Active Support Headrest for Growing Children/SecureFit Integrated Belt Guide + Positioner/Cup Holder Included/Kavneer (Almond Mélange)

Clek Oobr High Back Booster Seat with Adjustable Headrest, Reclining Design, Latch System, and Retardant-Free Fabric, Railroad

bubblebum

BubbleBum Inflatable Booster Car Seat – Foldable, Lightweight, Backless Travel Booster Seat for Kids, Portable Carseat for Toddler, Fits 3 Across, Compact for Uber - Ages 4-11 Year Old, - Black

Evenflo GoTime LX Booster Car Seat (Chardon Black)

Hiccapop UberBoost Inflatable Booster Car Seat | Blow up Narrow Backless Booster Car Seat for Travel | Portable Booster Seat for Toddlers, Kids, Child | Black/Gray

Cosco Topside Backless Booster Car Seat, Lightweight Booster Seats for Cars 40-100 lbs, Backless Booster Seat for Car, Leo

Graco® TurboBooster® LX Backless Booster with Affix Latch | Backless Booster Seat for Big Kids Transitioning to Vehicle Seat Belt (Rio)

Evenflo Maestro Sport Harness Booster Car Seat, Crestone Peaks

Chicco GoFit® Plus Backless Booster Car Seat with Latch Attachment and Quick-Release Latch Removal, Travel Booster Seat for Car, Portable Car Booster Seat for Children 40-110 lbs. | Iron/Black