Safety 1st Boost-and-Go 3-in-1 Harness Booster Car Seat
Safety 1st Boost-and-Go 3-in-1 Harness Booster Car Seat
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Safety 1st Boost-and-Go 3-in-1 Harness Booster Car Seat

4.3 stars out of 56 reviews
(4.3)|
56 ratings
Actual Color:High Street II
Dunes' Edge II, $94.49
selected, High Street II, $107.99, was $134.99
$134.99

Key item features

  • 3-in-1 booster for extended use: forward-facing harness booster (30–65 lbs., 34.4"–49"), high-back belt-positioning booster and backless booster (40–100 lbs., 43.4"–57")
  • 2 removable dishwasher-safe cup holders
  • Easily converts from harness mode to belt-positioning and backless modes with one simple motion
  • Narrow seat design fits 3 across the back seat in most vehicles
  • 1-hand-adjustable, 7-position headrest grows with your child
  • Lightweight and portable
  • Machine-washable and dryer-safe removable seat pad
Current price is Now $107.99
You save $27.00
was $134.99
Price when purchased online
  • Free shipping
  • Free 90-day returns
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Ships in the manufacturer's original packaging, which may reveal the contents.

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Comparison Chart:
Age GroupChildSafety 1st Boost-and-Go 3-in-1 Harness Booster Car SeatChildEvenflo Chase Plus 2-in-1 Harnessed Booster Car Seat, HuronChildSafety 1st Comfort Ride™ 3-in-1 Booster Car Seat, Seal Pup IIChildEvenflo NurtureMax Infant Car Seat (Dallas Blue)InfantSafety 1st Grow and Go Extend n Ride LX All in One Convertible Infant & Toddler Car Seat, Black PepperToddlerCosco Kids Scenera Extend Infant & Toddler Convertible Car Seat, Moonlit Night, BlackToddlerCosco Kids™ Easy Elite Slim All-in-One Convertible Car Seat, Grey Glyphs, Infant & Toddler, UnisexChildBaby Trend Hybrid SI Desert Grey 3-in-1 Combination Booster Car SeatInfantGraco TurboBooster Stretch2Fit Booster, Mariner, BlueToddlerSafety 1st TriFit All-in-One Convertible Car Seat
Child Car Seat StyleHigh-Back Booster Car SeatsSafety 1st Boost-and-Go 3-in-1 Harness Booster Car SeatHigh-Back Booster Car SeatsEvenflo Chase Plus 2-in-1 Harnessed Booster Car Seat, HuronHigh-Back Booster Car SeatsSafety 1st Comfort Ride™ 3-in-1 Booster Car Seat, Seal Pup IIInfant SeatEvenflo NurtureMax Infant Car Seat (Dallas Blue)Convertible Car SeatsSafety 1st Grow and Go Extend n Ride LX All in One Convertible Infant & Toddler Car Seat, Black PepperConvertible Car SeatsCosco Kids Scenera Extend Infant & Toddler Convertible Car Seat, Moonlit Night, BlackConvertible Car SeatsCosco Kids™ Easy Elite Slim All-in-One Convertible Car Seat, Grey Glyphs, Infant & Toddler, UnisexHigh-Back Booster Car SeatsBaby Trend Hybrid SI Desert Grey 3-in-1 Combination Booster Car SeatHigh-Back Booster Car SeatsGraco TurboBooster Stretch2Fit Booster, Mariner, BlueConvertible Car SeatsSafety 1st TriFit All-in-One Convertible Car Seat
ColorHigh Street IISafety 1st Boost-and-Go 3-in-1 Harness Booster Car SeatHuron BlackEvenflo Chase Plus 2-in-1 Harnessed Booster Car Seat, HuronSeal Pup IISafety 1st Comfort Ride™ 3-in-1 Booster Car Seat, Seal Pup IIDallas BlueEvenflo NurtureMax Infant Car Seat (Dallas Blue)Black PepperSafety 1st Grow and Go Extend n Ride LX All in One Convertible Infant & Toddler Car Seat, Black PepperMoonlit NightCosco Kids Scenera Extend Infant & Toddler Convertible Car Seat, Moonlit Night, BlackGrey GlyphsCosco Kids™ Easy Elite Slim All-in-One Convertible Car Seat, Grey Glyphs, Infant & Toddler, UnisexDesert GreyBaby Trend Hybrid SI Desert Grey 3-in-1 Combination Booster Car SeatMarinerGraco TurboBooster Stretch2Fit Booster, Mariner, BlueIron OreSafety 1st TriFit All-in-One Convertible Car Seat
Car Seat Facing DirectionForward FacingSafety 1st Boost-and-Go 3-in-1 Harness Booster Car SeatForward FacingEvenflo Chase Plus 2-in-1 Harnessed Booster Car Seat, HuronForward FacingSafety 1st Comfort Ride™ 3-in-1 Booster Car Seat, Seal Pup IIRear FacingEvenflo NurtureMax Infant Car Seat (Dallas Blue)ConvertibleSafety 1st Grow and Go Extend n Ride LX All in One Convertible Infant & Toddler Car Seat, Black PepperConvertibleCosco Kids Scenera Extend Infant & Toddler Convertible Car Seat, Moonlit Night, BlackConvertibleCosco Kids™ Easy Elite Slim All-in-One Convertible Car Seat, Grey Glyphs, Infant & Toddler, UnisexForward FacingBaby Trend Hybrid SI Desert Grey 3-in-1 Combination Booster Car SeatForward FacingGraco TurboBooster Stretch2Fit Booster, Mariner, BlueConvertibleSafety 1st TriFit All-in-One Convertible Car Seat
Now hiding additional rows in the Table

Customer ratings & reviews

4.3 out of 5 stars
stars56 ratings42 reviews
How item rating is calculated

Reviews summary

Pros
  • : Provides a comfortable ride with its cushioning.
  • : Features two holders that are easy for children to use.
  • : Has a compact profile for easy storage and transportation.
  • : Provides extra cushioning for long drives.
Neutral
  • : Provides 5-point security, but can be fiddly to use.
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Showing 1-3 of 42 reviews

Feb 5, 2026
Mohamad
Top Reviewer
Item details
Color: High Street II
5 out of 5 stars review

Verified Purchase

A , 100% satisfied.

Easy to install, easy to use.

Helpful?6S794GNR98LG17454058206
Jan 10, 2026
Cheyenne
Item details
Color: Dunes' Edge II
5 out of 5 stars review

Verified Purchase

One of the best car seats I've gotten for my child

Helpful?6S794GNR98LG17454058206
Feb 10, 2026
WalmartCustomer
Item details
Color: Dunes' Edge II
5 out of 5 stars review

Verified Purchase

The price was.great to afford

Incentivized Review
Helpful?6S794GNR98LG17454058206