Booster seats are designed to be used when the child is still too small to sit in a regular seat but is big enough to reach the pedals and handlebars. They can also be used for older children who have outgrown their infant seats but need additional support while riding. Here are some of the best narrow booster seats on the market.

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    200 results
    1. About this product

      A backless booster seat in Rio color featuring height-adjustable armrests and hideaway cup holders.

      A backless booster seat in Rio color featuring height-adjustable armrests and hideaway cup holders.

      What customers like

      • Convenient cup holders
      • Easy to install
      • Affordable price
      • Comfortable and well-made
      • Lightweight and portable
      4.6 (97 reviews)
      $52.99
      SAVE $10
      Your price for this item is $52.99
    2. About this product

      A versatile Kamryn-colored booster seat that converts from highback to backless with adjustable head support.

      A versatile Kamryn-colored booster seat that converts from highback to backless with adjustable head support.

      What customers like

      • Adjustable for growing children
      • Easy to assemble and install
      • Convenient cup holders
      • Comfortable with good head and neck support
      • Lightweight and portable
      4.6 (80 reviews)
      $94.99
      SAVE $13
      Your price for this item is $94.99
    3. About this product

      A slim, grey all-in-one booster seat offering four modes, adjustable headrest, and easy SecureTight installation.

      A slim, grey all-in-one booster seat offering four modes, adjustable headrest, and easy SecureTight installation.

      What customers like

      • Slim and space-saving design
      • Versatile and grows with child
      • Easy installation and setup
      • Comfortable and well-cushioned
      • Convenient features like cupholders and snack tray
      4.3 (102 reviews)
      $399.99 Your price for this item is $399.99
    4. About this product

      A versatile black car seat that transitions from harnessed to highback or backless booster for growing kids.

      A versatile black car seat that transitions from harnessed to highback or backless booster for growing kids.

      What customers like

      • Strong safety features
      • Comfortable for children
      • Convenient storage compartments
      • Easy to install and adjust
      • Grows with the child
      4.6 (168 reviews)
      $409.99 Your price for this item is $409.99
    5. About this product

      A versatile hexagon horizon car seat offering four modes and a slim design for enhanced safety and fit.

      A versatile hexagon horizon car seat offering four modes and a slim design for enhanced safety and fit.

      What customers like

      • Slim and compact fit for small cars
      • Machine washable and easy to clean
      • Easy to install and adjust
      • Comfortable and plush padding
      • Versatile all-in-one design
      4.5 (77 reviews)
      $399.99 Your price for this item is $399.99
    6. About this product

      A lightweight booster seat in volcano black with 12-position headrest and Linear Side-impact Protection System.

      A lightweight booster seat in volcano black with 12-position headrest and Linear Side-impact Protection System.

      What customers like

      • Strong safety and side-impact protection
      • Removable cup holder and easy to clean
      • Comfortable with adjustable headrest
      • Simple and quick installation
      • Lightweight and easy to carry
      4.5 (31 reviews)
      $99.99 Your price for this item is $99.99
    7. About this product

      A slim, two-in-one rotational car seat in black/grey that extends rear-facing use and offers forward-facing mode.

      A slim, two-in-one rotational car seat in black/grey that extends rear-facing use and offers forward-facing mode.

      What customers like

      • Extended rear-facing option
      • Versatile design
      • 360-degree rotation
      • Slim profile
      • Easy installation and adjustments
      4.5 (142 reviews)
      $399.99
      SAVE $200
      Your price for this item is $399.99
    8. About this product

      A versatile slate booster seat with a three-point harness and removable, dishwasher-safe tray for infants.

      A versatile slate booster seat with a three-point harness and removable, dishwasher-safe tray for infants.

      What customers like

      • Compact, lightweight, and portable
      • Secure and supportive design
      • Versatile and grows with baby
      • Easy to clean and dishwasher-safe tray
      • Simple assembly and convenient storage
      4.4 (96 reviews)
      $59.99 Your price for this item is $59.99
    9. About this product

      A versatile black booster seat that converts from high-back to backless, featuring cup holders and arm rests.

      A versatile black booster seat that converts from high-back to backless, featuring cup holders and arm rests.

      What customers like

      • Adjustable and grows with child
      • Easy to assemble and install
      • Convenient cup holders
      • Comfortable with good head and neck support
      • Lightweight and portable
      4.5 (81 reviews)
      $129.99 Your price for this item is $129.99
    10. About this product

      A taupe booster seat with a supportive backrest, 3-point harness, and easy-to-clean removable cushion.

      A taupe booster seat with a supportive backrest, 3-point harness, and easy-to-clean removable cushion.

      What customers like

      • Highly portable and lightweight
      • Simple to set up and use
      • Secure and stable fit
      • Comfortable and supportive
      • Easy to clean
      4.9 (25 reviews)
      $79.99 Your price for this item is $79.99