Best Convertible Booster Seat

Evenflo Platinum Symphony Elite All-in-One Car Seat

  • ALL-IN-ONE CAR SEAT: The Evenflo Symphony DLX all-in-one car seat accommodates children from 5 to 110 pounds and features three modes: rear-facing, forward-facing harness, and belt-positioning booster..
  • 5-POINT HARNESS: Our Evenflo all-in-one car seat includes a five-point harness that has been tested to a 65-pound weight limit. This allows longer harness use, until the child is ready for a belt-positioning booster mode..
  • INFANT + CONVERTIBLE + BOOSTER: This all-in-one car seat is an honest three-in-one. It can be used as a rear-facing harness, a forward-facing harness, and a belt-positioning booster that provides safety and is assembled in the USA..
  • EASY TO ADJUST: Our all-in-one car seat features a one-hand adjustable headrest that grows with your child, and a no-rethread harness: easy-to-slide harness straps that enable proper fit during each ride..
  • TRUSTED FOR NEARLY 100 YEARS: Evenflo has been a trusted source of well-built children products for almost 100 years. The real-life designs used in each of our products have been engineered for everyday use..
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Britax One4Life ClickTight All-in-One Car Seat Black Diamond

  • One4Life: Converts from a rear-facing infant car seat, to a forward-facing 5-point harness seat, to a high-back belt-positioning booster seat.
  • 10 Years of Use: One4Life convertible to booster car seat grows with your child from 5 – 120 lbs and up to 63” in height.
  • Full Body Protection: 2 layers of side impact protection surround your child’s head, neck & torso.
  • Britax Safety: Patented v-shaped tether, high strength steel frame and crumple zone absorb crash energy to help keep your child safe.
  • Install Confidently: With ClickTight Installation, you’ll know it’s right in 3 easy steps.
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Diono Radian 3RXT, 4-in-1 Convertible Car Seat, Rear and Forward Facing, Steel Core, 10 Years 1 Car Seat, Ultimate Safety and Protection, Slim Fit 3 Across, Black Jet

  • AWARD WINNING RADIAN ALL-IN-ONE CONVERTIBLE CAR SEAT - From infant to booster seat, rear and forward facing the radian 3RXT adapts as your child grows for 10 years of use (2.2 - 54 kg / 5 - 120 lb).
  • REAR FACING FOR LONGER - Designed for safe rear facing travel from 5 50 lb / 2.3 - 22.7 kg complete with newborn travel high wedge to protect as they grow from baby, infant to toddler.
  • ONE HAND EASY ADJUST 12 POSITION HEADREST - Creates a safe and comfortable fit for rear facing, forward facing and booster seat modes.
  • STEEL REINFORCED FRAME - Mechanically engineered, reinforced steel core, made from automotive grade high strength steel to shield and protect.
  • THE ORIGINAL RADIAN 3 ACROSS - Built with our famous Radian slim fit convertible design for a 3-across option only with Diono Radian combinations without compromising child or passenger comfort. Feel safe having your children secure in the backseat.
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Evenflo Maestro Sport Convertible Booster Car Seat Forward Facing High Back 5-Point Harness For Kids 2 to 8 Years Old Whitney Pink

  • Convertible Forward Facing Car Seat: Keep your child safe as they grow from toddler to child with this forward-facing car seat for kids ages 2-8 years....
  • Dual Use: 5-point harness car seat for toddlers ages 2-4 from 22-50 pounds and 28-50 inches tall.
  • high-back booster seat for kids ages 4-8 from 40-110....
  • Adjustable Harness and Belt: Harness adjusts to growing child and booster seat features a shoulder seat belt guide to keep it in the proper position....
  • Easy to Clean: Easy to clean with wipeable and machine-washable car seat pad that removes for easy cleaning.
  • Convenient and Safe: Includes 2 built-in cup holders to keep drinks and snacks within reach.
  • Meets or exceeds all applicable federal safety standards....
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Diono Radian 3QXT 4-in-1 Rear and Forward Facing Convertible Car Seat Safe Plus Engineering 4 Stage Infant Protection 10 Years 1 Car Seat Slim Fit 3 Across Jet Black

  • THE ULTIMATE RADIAN ALL-IN-ONE CONVERTIBLE CAR SEAT - From infant to booster seat, rear and forward facing the Radian 3QXT adapts as your child grows....
  • 4-IN-1 NEWBORN PROTECTION - Designed for safe rear facing travel from 4 - 50 pounds / 1.8 - 22.7 kg complete with Safe+ inserts and Safe+ steel....
  • SAFE+ ENGINEERING - Our most rigorously tested Radian all-in-one convertible car seat.
  • featuring Safe+ steel rear facing anti-rebound bar, steel....
  • ONE HAND EASY ADJUST 12 POSITION HEADREST - Contoured to improve child head containment and provides a 22% increase in occupancy range from the radian....
  • THE ORIGINAL RADIAN 3 ACROSS: Built with our famous Radian slim fit convertible design for a 3-across option only with Diono Radian combinations....
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Diono Radian 3QXT 4-in-1 Rear and Forward Facing Convertible Car Seat Safe Plus Engineering 4 Stage Infant Protection 10 Years 1 Car Seat Slim Fit 3 Across Gray Slate

  • THE ULTIMATE RADIAN ALL-IN-ONE CONVERTIBLE CAR SEAT - From infant to booster seat, rear and forward facing the Radian 3QXT adapts as your child grows....
  • 4-IN-1 NEWBORN PROTECTION - Designed for safe rear facing travel from 4 - 50 pounds / 1.8 - 22.7 kg complete with Safe+ inserts and Safe+ steel....
  • SAFE+ ENGINEERING - Our most rigorously tested Radian all-in-one convertible car seat.
  • featuring Safe+ steel rear facing anti-rebound bar, steel....
  • ONE HAND EASY ADJUST 12 POSITION HEADREST - Contoured to improve child head containment and provides a 22% increase in occupancy range from the radian....
  • THE ORIGINAL RADIAN 3 ACROSS: Built with our famous Radian slim fit convertible design for a 3-across option only with Diono Radian combinations....
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Diono Radian 3QXT 4-in-1 Rear and Forward Facing Convertible Car Seat Safe Plus Engineering 4 Stage Infant Protection 10 Years 1 Car Seat Slim Fit 3 Across Purple Plum

  • THE ULTIMATE RADIAN ALL-IN-ONE CONVERTIBLE CAR SEAT - From infant to booster seat, rear and forward facing the Radian 3QXT adapts as your child grows....
  • 4-IN-1 NEWBORN PROTECTION - Designed for safe rear facing travel from 4 - 50 pounds / 1.8 - 22.7 kg complete with Safe+ inserts and Safe+ steel....
  • SAFE+ ENGINEERING - Our most rigorously tested Radian all-in-one convertible car seat.
  • featuring Safe+ steel rear facing anti-rebound bar, steel....
  • ONE HAND EASY ADJUST 12 POSITION HEADREST - Contoured to improve child head containment and provides a 22% increase in occupancy range from the radian....
  • THE ORIGINAL RADIAN 3 ACROSS: Built with our famous Radian slim fit convertible design for a 3-across option only with Diono Radian combinations....
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Diono Radian 3QXT 4-in-1 Rear and Forward Facing Convertible Car Seat Safe Plus Engineering 4 Stage Infant Protection 10 Years 1 Car Seat Slim Fit 3 Across Blue Sky

  • THE ULTIMATE RADIAN ALL-IN-ONE CONVERTIBLE CAR SEAT - From infant to booster seat, rear and forward facing the Radian 3QXT adapts as your child grows....
  • 4-IN-1 NEWBORN PROTECTION - Designed for safe rear facing travel from 4 - 50 pounds / 1.8 - 22.7 kg complete with Safe+ inserts and Safe+ steel....
  • SAFE+ ENGINEERING - Our most rigorously tested Radian all-in-one convertible car seat.
  • featuring Safe+ steel rear facing anti-rebound bar, steel....
  • ONE HAND EASY ADJUST 12 POSITION HEADREST - Contoured to improve child head containment and provides a 22% increase in occupancy range from the radian....
  • THE ORIGINAL RADIAN 3 ACROSS: Built with our famous Radian slim fit convertible design for a 3-across option only with Diono Radian combinations....
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Diono Radian 3QX 4-in-1 Rear & Forward Facing Convertible Car Seat Safe+ Engineering 3 Stage Infant Protection 10 Years 1 Car Seat Ultimate Protection Slim Fit 3 Across Gray Slate

  • NEXT GENERATION RADIAN ALL-IN-ONE CONVERTIBLE CAR SEAT - From infant to booster seat, rear and forward facing the Radian 3QX adapts as your child....
  • 3-IN-1 REAR FACING PROTECTION - Designed for safe rear-facing travel from 4 - 50 pounds (1.8 - 22.7 kg) complete with Safe+ inserts and Safe+ steel....
  • SAFE+ ENGINEERING - Tested Radian all-in-one convertible car seat.
  • featuring Safe+ steel rear-facing anti-rebound bar, steel reinforced frame,....
  • ONE HAND EASY ADJUST 12 POSITION HEADREST - Contoured to improve child head containment and provides a 22% increase in occupancy range from the Radian....
  • THE ORIGINAL RADIAN 3 ACROSS: Built with our famous Radian slim fit convertible design for a 3-across option only with Diono Radian combinations....
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