Best Narrow Booster

Graco Junior Maxi i-Size R129 Highback Booster car seat with cupholders, Suitable from 100-150cm (approx. 3.5 to 12 years), Midnight fashion

Jovikids I-Size Booster Seat for Car with ISOFIX, 125-150cm (Group 2/3, 3-12 Years), Portable Booster Seat for Kids, Comfortable, Compact, Convenient for Everyday Use, Great for Travel, ECE R129, Blue

Maxi-Cosi RodiFix AirProtect High Back Booster Seat, 15 - 36 kg, 3.5 - 12 Years, Reclining ISOFIX Car Seat, Adjustable Headrest/Backrest, Extra Side Protection, Quick & Easy Buckle-up, Authentic Black

Kinderkraft Car Seat Comfort UP, I-Size Booster Child Seat, with 5 Point Harness, Adjustable Headrest, for Toddlers, Infant, Group 1/2/3, 9-36 Kg, Up to 12 Years, Pink

Bubble Bum Inflatable Booster Car Seat - Travel Booster Seat - Portable Car Booster Seat - Booster Seat for Car - Foldable Narrow Slim Design Car Seat - Perfect for Kids 4-11yrs Old - Black

globalkids isofix Baby car Booster seat - Group 3 (6 to 12 Years Approx., 22-36 kg),Comfortable,Light Weight Compact,with Cupholders (red Grey)

Yoleo Portable High Chair for Babies and Toddlers, Baby Booster Seat for Dining Chair, 6 Months to 3 Years, 15 kg, Height Adjustable, with Removable Tray Grey

iMedic Wedge Memory Foam Seat Cushion - Car Seat Cushion for Posture Correction & Height Boost - Car Seat Cushions for Driving - Seat Cushion for Office Chair - Anti Slip Bottom - Black 3D Mesh

Toddler Booster seat for Dining Chair， Washable 4 Belt Attach to Chair Baby Table Booster seat, Portable Travel Child Kids Booster Cushion

UBRAVOO Portable High Chair 6 Months Plus, Lightweight Baby Booster Seat with Removable Tray, Easy Clean Folding Booster Chair for Babies Toddlers, ACE1013 (Wisdom of The Owl)