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Booster Car Seats

Keep your big kid safe without breaking the bank. Our open box and gently used booster car seats are safety-inspected, cleaned, and ready for the next ride. Shop trusted brands like Graco, Chicco, and Britax while saving an average of 50% off retail. Find both highback and backless styles—each one parent-approved and road ready.

Learn more about our GoodBuy ™ Car Seat Safety Check here & learn about the different types of car seats, plus choosing the best one for your family here.

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Shop Graco Tranzitions 3-in-1 Harness Booster Car Seat, 2024, Marley at GoodBuy Gear Save 22% Save %
$93.75
$93.75 - $93.75
$93.75
$119.99
$119.99 - $119.99
$119.99

Graco Tranzitions 3-in-1 Harness Booster Car Seat, 2024, Marley

Condition: Open Box The Graco Tranzitions 3-in-1 Harness Booster Car Seat is the perfect tool for busy parents to protect your child from toddler t...

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Open Box
in stock
Shop Graco Tranzitions 3-in-1 Harness Booster Car Seat, 2024, Proof at GoodBuy Gear Save 26% Save %
$89.29
$89.29 - $89.29
$89.29
$119.99
$119.99 - $119.99
$119.99

Graco Tranzitions 3-in-1 Harness Booster Car Seat, 2024, Proof

Condition: Open Box The Graco Tranzitions 3-in-1 Harness Booster Car Seat is the perfect tool for busy parents to protect your child from toddler t...

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Open Box
in stock
Shop Graco Tranzitions 3-in-1 Harness Booster Car Seat, 2023, Marley at GoodBuy Gear Save 22% Save %
$93.75
$93.75 - $93.75
$93.75
$119.99
$119.99 - $119.99
$119.99

Graco Tranzitions 3-in-1 Harness Booster Car Seat, 2023, Marley

Condition: Open Box The Graco Tranzitions 3-in-1 Harness Booster Car Seat is the perfect tool for busy parents to protect your child from toddler t...

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Open Box
in stock
Shop Graco TurboBooster 2.0 Backless Booster Car Seat, 2024, Kent at GoodBuy Gear Save 59% Save %
$14.43
$14.43 - $14.43
$14.43
$34.99
$34.99 - $34.99
$34.99

Graco TurboBooster 2.0 Backless Booster Car Seat, 2024, Kent

Condition: Open Box The Graco TurboBooster 2.0 Backless Booster Car Seat offers advanced protection in crashes and a comfortable seating position w...

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Open Box
Only 5 left!
Shop Graco TurboBooster 2.0 Highback Booster, 2024, Declan at GoodBuy Gear
Save 32% Save %
$47.40
$47.40 - $47.40
$47.40
$69.99
$69.99 - $69.99
$69.99

Graco TurboBooster 2.0 Highback Booster, 2024, Declan

Condition: Open Box "The Graco TurboBooster Highback Booster is designed to safely transport your big kids from 4-10 years old and 40-1...

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Open Box
in stock
Shop Graco TurboBooster 2.0 Highback Booster, 2024, Freya at GoodBuy Gear
Save 49% Save %
$35.69
$35.69 - $35.69
$35.69
$69.99
$69.99 - $69.99
$69.99

Graco TurboBooster 2.0 Highback Booster, 2024, Freya

Condition: Open Box "The Graco TurboBooster Highback Booster is designed to safely transport your big kids from 4-10 years old and 40-1...

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Open Box
Only 1 left!
Shop Graco TurboBooster 2.0 Backless Booster Car Seat, 2024, Anna at GoodBuy Gear
Save 59% Save %
$14.43
$14.43 - $14.43
$14.43
$34.99
$34.99 - $34.99
$34.99

Graco TurboBooster 2.0 Backless Booster Car Seat, 2024, Anna

Condition: Open Box The Graco TurboBooster 2.0 Backless Booster Car Seat offers advanced protection in crashes and a comfortable seating position w...

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Open Box
Only 4 left!
Shop Graco TurboBooster 2.0 Highback Booster, 2023, Freya at GoodBuy Gear
Save 45% Save %
$38.19
$38.19 - $38.19
$38.19
$69.99
$69.99 - $69.99
$69.99

Graco TurboBooster 2.0 Highback Booster, 2023, Freya

Condition: Open Box The Graco TurboBooster Highback Booster is designed to safely transport your big kids from 4-10 years old and 40-100 lbs, as we...

View full details
Open Box
in stock
Shop Graco TurboBooster 2.0 Backless Booster Car Seat, 2023, Anna at GoodBuy Gear
Save 57% Save %
$15.19
$15.19 - $15.19
$15.19
$34.99
$34.99 - $34.99
$34.99

Graco TurboBooster 2.0 Backless Booster Car Seat, 2023, Anna

Condition: Open Box The Graco TurboBooster 2.0 Backless Booster Car Seat offers advanced protection in crashes and a comfortable seating position w...

View full details
Open Box
Only 2 left!
Shop Graco TurboBooster Stretch2FIT Booster Seat, 2022, Spencer at GoodBuy Gear
Save 40% Save %
$59.84
$59.84 - $59.84
$59.84
$99.99
$99.99 - $99.99
$99.99

Graco TurboBooster Stretch2FIT Booster Seat, 2022, Spencer

Condition: Open Box This booster offers easy adaptability with 9 adjustable back and headrest positions for growing children. With breathable AirFl...

View full details
Open Box
Only 1 left!
Shop Graco TurboBooster Stretch2FIT Booster Seat, 2023, Ainsley at GoodBuy Gear
Save 43% Save %
$56.85
$56.85 - $56.85
$56.85
$99.99
$99.99 - $99.99
$99.99

Graco TurboBooster Stretch2FIT Booster Seat, 2023, Ainsley

Condition: Open Box This booster offers easy adaptability with 9 adjustable back and headrest positions for growing children. With breathable AirFl...

View full details
Open Box
in stock
Shop Graco TurboBooster 2.0 Backless Booster Car Seat, 2023, Kent at GoodBuy Gear
Save 54% Save %
$15.99
$15.99 - $15.99
$15.99
$34.99
$34.99 - $34.99
$34.99

Graco TurboBooster 2.0 Backless Booster Car Seat, 2023, Kent

Condition: Open Box The Graco TurboBooster 2.0 Backless Booster Car Seat offers advanced protection in crashes and a comfortable seating position w...

View full details
Open Box
in stock
Shop Evenflo GoTime No Back Booster Car Seat, 2024, Static Black at GoodBuy Gear
Save 37% Save %
$18.84
$18.84 - $18.84
$18.84
$29.99
$29.99 - $29.99
$29.99

Evenflo GoTime No Back Booster Car Seat, 2024, Static Black

Condition: Open Box This booster seat is designed to ensure a proper fit for growing children, providing the necessary support for vehicle belt pos...

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Open Box
Only 2 left!
Shop Graco Nautilus 2.0 3-in-1 Harness Booster Car Seat, 2022, Standard, Kara at GoodBuy Gear
Save 44% Save %
$106.99
$106.99 - $106.99
$106.99
$189.99
$189.99 - $189.99
$189.99

Graco Nautilus 2.0 3-in-1 Harness Booster Car Seat, 2022, Standard, Kara

Condition: Open Box 3-in-1 harness booster helps protect your child, from toddler to big kid Grows with your child from forward-facing harness (26...

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Open Box
Only 2 left!
Shop Cybex Solution G2 Folding High-Back Booster Seat, 2025, Moon Black at GoodBuy Gear
Save $100.46 Save $0.00
$199.49
$199.49 - $199.49
$199.49
$299.95
$299.95 - $299.95
$299.95

Cybex Solution G2 Folding High-Back Booster Seat, 2025, Moon Black

Condition: Open Box This child safety seat features a patented reclining headrest that enhances head protection by up to seven times. Its foldable ...

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Open Box
Only 1 left!
Shop Graco Nautilus 2.0 3-in-1 Harness Booster Car Seat, Crane, Standard, 2024 at GoodBuy Gear
Save 45% Save %
$104.99
$104.99 - $104.99
$104.99
$189.99
$189.99 - $189.99
$189.99

Graco Nautilus 2.0 3-in-1 Harness Booster Car Seat, Crane, Standard, 2024

Condition: Open Box 3-in-1 harness booster helps protect your child, from toddler to big kid Grows with your child from forward-facing harness (26...

View full details
Open Box
Only 1 left!
Shop Graco TurboBooster Stretch2FIT Booster Seat, 2023, Spencer at GoodBuy Gear
Save 44% Save %
$55.99
$55.99 - $55.99
$55.99
$99.99
$99.99 - $99.99
$99.99

Graco TurboBooster Stretch2FIT Booster Seat, 2023, Spencer

Condition: Open Box This booster offers easy adaptability with 9 adjustable back and headrest positions for growing children. With breathable AirFl...

View full details
Open Box
Only 4 left!
Shop Chicco MyFit Harness + Booster Car Seat, Iron, 2025 at GoodBuy Gear
Save 21% Save %
$188.99
$188.99 - $188.99
$188.99
$239.99
$239.99 - $239.99
$239.99

Chicco MyFit Harness + Booster Car Seat, Iron, 2025

Condition: Open Box The harness and booster car seat is expertly designed for children's safety and comfort. With DuoGuard head & torso protect...

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Open Box
Only 1 left!
Shop Graco TurboBooster Stretch2FIT Booster Seat, 2022, Ainsley at GoodBuy Gear
Save 43% Save %
$56.85
$56.85 - $56.85
$56.85
$99.99
$99.99 - $99.99
$99.99

Graco TurboBooster Stretch2FIT Booster Seat, 2022, Ainsley

Condition: Open Box This booster offers easy adaptability with 9 adjustable back and headrest positions for growing children. With breathable AirFl...

View full details
Open Box
Only 3 left!
Shop Graco TurboBooster Stretch2FIT Booster Seat, 2024, Ainsley at GoodBuy Gear
Save 43% Save %
$56.85
$56.85 - $56.85
$56.85
$99.99
$99.99 - $99.99
$99.99

Graco TurboBooster Stretch2FIT Booster Seat, 2024, Ainsley

Condition: Open Box This booster offers easy adaptability with 9 adjustable back and headrest positions for growing children. With breathable AirFl...

View full details
Open Box
Only 2 left!
Shop Graco TurboBooster 2.0 Highback Booster, 2023, Declan at GoodBuy Gear
Save 35% Save %
$45.19
$45.19 - $45.19
$45.19
$69.99
$69.99 - $69.99
$69.99

Graco TurboBooster 2.0 Highback Booster, 2023, Declan

Condition: Open Box The Graco TurboBooster Highback Booster is designed to safely transport your big kids from 4-10 years old and 40-100 lbs, as we...

View full details
Open Box
Only 1 left!
Shop Graco TurboBooster Stretch2FIT Booster Seat, 2022, Ainsley at GoodBuy Gear
Save 52% Save %
$47.82
$47.82 - $47.82
$47.82
$99.99
$99.99 - $99.99
$99.99

Graco TurboBooster Stretch2FIT Booster Seat, 2022, Ainsley

Condition: Barely Used This booster offers easy adaptability with 9 adjustable back and headrest positions for growing children. With breathable Ai...

View full details
Barely Used
Only 1 left!
Shop Graco TurboBooster 2.0 Backless Booster Car Seat, 2023, Denton at GoodBuy Gear
Save 23% Save %
$26.99
$26.99 - $26.99
$26.99
$34.99
$34.99 - $34.99
$34.99

Graco TurboBooster 2.0 Backless Booster Car Seat, 2023, Denton

Condition: Open Box The Graco TurboBooster 2.0 Backless Booster Car Seat offers advanced protection in crashes and a comfortable seating position w...

View full details
Open Box
Only 3 left!
Shop Graco TurboBooster 2.0 Highback Booster, 2024, Declan at GoodBuy Gear
Save 31% Save %
$47.99
$47.99 - $47.99
$47.99
$69.99
$69.99 - $69.99
$69.99

Graco TurboBooster 2.0 Highback Booster, 2024, Declan

Condition: Open Box The Graco TurboBooster Highback Booster is designed to safely transport your big kids from 4-10 years old and 40-100 lbs, as we...

View full details
Open Box
Only 1 left!
Shop Safety 1st Comfort Ride Lite Booster Car Seat, Pure Black, 2024 at GoodBuy Gear
Save 49% Save %
$17.99
$17.99 - $17.99
$17.99
$34.99
$34.99 - $34.99
$34.99

Safety 1st Comfort Ride Lite Booster Car Seat, Pure Black, 2024

Condition: Gently Used Lightweight backless booster designed for toddlers weighing 40–100 lbs. and measuring 43"–57" tall. The ergonomic, contoured...

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Gently Used
Only 1 left!
Shop Graco TurboBooster Stretch2FIT Booster Seat, 2023, Ainsley at GoodBuy Gear
Save 52% Save %
$47.82
$47.82 - $47.82
$47.82
$99.99
$99.99 - $99.99
$99.99

Graco TurboBooster Stretch2FIT Booster Seat, 2023, Ainsley

Condition: Barely Used This booster offers easy adaptability with 9 adjustable back and headrest positions for growing children. With breathable Ai...

View full details
Barely Used
Only 1 left!
Shop Graco TurboBooster Stretch2FIT Booster Seat, 2024, Ainsley at GoodBuy Gear
Save 52% Save %
$47.82
$47.82 - $47.82
$47.82
$99.99
$99.99 - $99.99
$99.99

Graco TurboBooster Stretch2FIT Booster Seat, 2024, Ainsley

Condition: Barely Used This booster offers easy adaptability with 9 adjustable back and headrest positions for growing children. With breathable Ai...

View full details
Barely Used
Only 1 left!
Shop Graco TurboBooster Stretch2FIT Booster Seat, 2022, Spencer at GoodBuy Gear
Save 52% Save %
$47.82
$47.82 - $47.82
$47.82
$99.99
$99.99 - $99.99
$99.99

Graco TurboBooster Stretch2FIT Booster Seat, 2022, Spencer

Condition: Barely Used This booster offers easy adaptability with 9 adjustable back and headrest positions for growing children. With breathable Ai...

View full details
Barely Used
Only 1 left!

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