Top 3 Across Car Seat Reviews

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, Purple Plum

  • THE NEXT GENERATION 4-IN-1 RADIAN CONVERTIBLE CAR SEAT: Introducing 23 improvements in safety and new features from the award-winning 3QX slimfit convertible car seat..
  • 3-in-1 NEWBORN PROTECTION FROM 4 lbs: Provides the perfect lie flat travel position, adjustable harness and anti-slip harness pads complete with Safe+ steel anti-rebound bar to reduce rebound rotation by 50%. Security 3 different ways - rear-facing, forward-facing, and booster mode.
  • SAFE+ 12 POSITION HEADREST: Easy one hand adjust 22% increase in headrest occupancy, comfort and protection.
  • SAFE+ ENGINEERING: Radian 3QX is subjected to a combination of the most rigorous crash tests to ensure we have the safest car seat possible. The radian 3QX features high density plastic and steel reinforcement to create the ultimate protection..
  • 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..
Check Stock

Diono Radian 3R 3-in-1 Convertible Car Seat Rear Facing & Forward Facing 10 Years 1 Car Seat Slim Fit 3 Across Blue Sky

  • REAR-FACING FOR LONGER: This slimfit convertible car seat is designed and engineered to keep your child rear facing even longer up to 50 lb/ 22. 7 kg,....
  • HIGH BACK BOOSTER: Keep your child safe and comfortable with the high back booster seat mode now up to 120 lb, 54 kg. The high back booster adds an....
  • 10 YEARS ONE CAR SEAT: With 4 ways to travel safely from birth to booster, the radian 3R adapts as your child grows to offer a custom adjustable fit....
  • REINFORCED STEEL CORE: Mechanically engineered, reinforced steel core, made from automotive grade high density plastic and steel to create the....
  • THE ORIGINAL 3 ACROSS: Built with our famous radian slim fit convertible design, to fit 3 across in most vehicles without compromising child or....
Check Stock

Diono Radian 3R 3-in-1 Convertible Car Seat Rear Facing & Forward Facing 10 Years 1 Car Seat Slim Fit 3 Across Gray Slate

  • REAR-FACING FOR LONGER: This slimfit convertible car seat is designed and engineered to keep your child rear facing even longer up to 50 lb/ 22. 7 kg,....
  • HIGH BACK BOOSTER: Keep your child safe and comfortable with the high back booster seat mode now up to 120 lb, 54 kg. The high back booster adds an....
  • 10 YEARS ONE CAR SEAT: With 4 ways to travel safely from birth to booster, the radian 3R adapts as your child grows to offer a custom adjustable fit....
  • REINFORCED STEEL CORE: Mechanically engineered, reinforced steel core, made from automotive grade high density plastic and steel to create the....
  • THE ORIGINAL 3 ACROSS: Built with our famous radian slim fit convertible design, to fit 3 across in most vehicles without compromising child or....
Check Stock

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

  • The Ultimate Travel Booster Seat - Unlock the convenience of the USA’s first backless inflatable booster seat. BubbleBum is the only inflatable booster seat with a patented system to guarantee stability and comfort on every journey..
  • Safety You Can Count On - BubbleBum exceeds all US federal car safety standards & European regulations (FMVSS213 & R44/04). Your new car booster seat comes with a seat belt positioning clip for optimal seat belt fit and comfort. Ideal booster seat for car 40-100 lbs children..
  • Take Anywhere Travel Booster Seat - The BubbleBum inflatable car seat is perfect for car rentals, taxis, vacations, and carpooling. Take your new backless booster seat on all your adventures. Perfect for kids 4 - 11yrs..
  • Fits With A Car Load Of Kids - Narrow & compact BubbleBum is perfect for the middle seat, including small cars. Our compact booster seat fits between 2 full-size car seats, allowing 3 kids across the back of almost any car..
  • Global Award Winner - In 2021 BubbleBum won a ‘Mom's Best Award’ and is the recipient of a ‘Parent Tested Parent Approved’ award, plus dozens more. Ask our 1 million+ happy customers how much they trust the BubbleBum name. Your booster comes with a lifetime guarantee..
Check Stock

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....
Check Stock

Clek Fllo Convertible Car Seat, Thunder (Crypton C-Zero Performance Fabric)

  • More Room to fit 3-Across: With a best-in-class car seat width under 17 in., the compact design fits 3-across in most vehicles, and conveniently fits those difficult narrow center seating positions..
  • Rear-Facing for Longer: Designed to international best practices for extended rear-facing use up to 50 pounds, and comes standard with a steel anti-rebound for enhanced rear-facing safety performance..
  • Maximum Side Impact Protection: Engineered with a steel-reinforced substructure, inner and outer energy absorbing foam layers and an adjustable deep headrest..
  • Green + Clean: Tailored in GREENGUARD Gold Certified fluorine-free C-Zero fabrics that protects against stains, moisture and odor-causing bacteria, and are free of halogenated flame retardants..
  • Energy Absorbing Crumple Technology: Aluminum honeycomb deformable cores integrated into the car seat base that absorb energy in a collision..
Check Stock

Clek Fllo Convertible Car Seat, Flamingo (Crypton C-Zero Performance Fabric)

  • More Room to fit 3-Across: With a best-in-class car seat width under 17 in., the compact design fits 3-across in most vehicles, and conveniently fits those difficult narrow center seating positions..
  • Rear-Facing for Longer: Designed to international best practices for extended rear-facing use up to 50 pounds, and comes standard with a steel anti-rebound for enhanced rear-facing safety performance..
  • Maximum Side Impact Protection: Engineered with a steel-reinforced substructure, inner and outer energy absorbing foam layers and an adjustable deep headrest..
  • Green + Clean: Tailored in GREENGUARD Gold Certified fluorine-free C-Zero fabrics that protects against stains, moisture and odor-causing bacteria, and are free of halogenated flame retardants..
  • Energy Absorbing Crumple Technology: Aluminum honeycomb deformable cores integrated into the car seat base that absorb energy in a collision..
Check Stock

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....
Check Stock

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....
Check Stock

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....
Check Stock

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....
Check Stock

Diono Radian 3R, 3-in-1 Convertible Car Seat, Rear Facing & Forward Facing, 10 Years 1 Car Seat, Slim Fit 3 Across, Red Cherry

  • REAR-FACING FOR LONGER: This slimfit convertible car seat is designed and engineered to keep your child rear facing even longer up to 50 lb/ 22. 7 kg, approx. 4 years old.
  • HIGH BACK BOOSTER: Keep your child safe and comfortable with the high back booster seat mode now up to 120 lb, 54 kg. The high back booster adds an extra layer of protection and comfort for any child transitioning into booster mode.
  • 10 YEARS ONE CAR SEAT: With 4 ways to travel safely from birth to booster, the radian 3R adapts as your child grows to offer a custom adjustable fit from birth to 120 lbs.
  • REINFORCED STEEL CORE: Mechanically engineered, reinforced steel core, made from automotive grade high density plastic and steel to create the ultimate protection for your child.
  • 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..
Check Stock

Diono Radian 3R, 3-in-1 Convertible Car Seat, Rear Facing & Forward Facing, 10 Years 1 Car Seat, Slim Fit 3 Across, Jet Black

  • REAR-FACING FOR LONGER: This slimfit convertible car seat is designed and engineered to keep your child rear facing even longer up to 50 lb/ 22. 7 kg, approx. 4 years old.
  • HIGH BACK BOOSTER: Keep your child safe and comfortable with the high back booster seat mode now up to 120 lb, 54 kg. The high back booster adds an extra layer of protection and comfort for any child transitioning into booster mode.Shell and Components: Spot clean.
  • 10 YEARS ONE CAR SEAT: With 4 ways to travel safely from birth to booster, the Radian 3R adapts as your child grows to offer a custom adjustable fit from birth to 120 lbs.
  • REINFORCED STEEL CORE: Mechanically engineered, reinforced steel core, made from automotive grade high density plastic and steel to create the ultimate protection for your child.
  • THE ORIGINAL 3 ACROSS: Built with our famous radian slim fit convertible design, to fit 3 across in most vehicles without compromising child or passenger comfort. Feel safe having your children secure in the backseat.
Check Stock