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Safety 1st OnBoard FLX Infant Car Seat, Old Soul

  • Based on 8,166 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon

Arrives Sep 16 – Sep 17
Order within 14 hours and 44 minutes
Available payment plans shown during checkout

Color: Old Soul


Style: Original


Features

  • EASY FOR PARENTS, A COMFY, SECURE RIDE FOR LITTLES The onBoard FLX Infant Car Seat fits little ones 430 lbs. rear-facing and up to 32". Compatible with Safety 1st strollers with QuickClick, which ensures car seat attaches securely to stroller with 1 click.
  • AN ULTRA-LIGHTWEIGHT CARRY Getting out and about with your baby has never been easier than with this super light car seat. The infant carrier weighs under 8 lbs., so no more struggling with a heavy seat.
  • EASY IS THE NAME OF THE GAME The onBoard FLX Infant Car Seat is LATCH-equipped for quick installation. The 1-pull harness adjustment is simple and gives baby a secure fit. Seat pad is machine-washable and dryer-safe.
  • ALWAYS JUST RIGHT Newborn head and body inserts for the perfect fit for the littlest travelers. 4 harness heights are spaced for adjustments as little one grows. Adjustable base for the right fit in your car.
  • ADDITIONAL FEATURES YOULL LOVE Side Impact Protection (SIP) with deep sides and energy-absorbing materials. 5-point harness with up-front adjustment. Airplane-ready. Meets or exceeds federal safety standards.

Description

Give baby a comfortable, secure fit with the ultra-lightweight onBoard FLX Infant Car Seat. Weighing less than 8 lbs., this seat is so easy to carry. The 4 harness heights are spaced just right to give your child a better fit from 430 lbs. and up to 32". The buckle adjusts two ways so that you can customize not only the length, but also the buckles position on your child. Smaller babies get the extra support they need with head and body inserts that can be removed as they grow. The seat is also designed with a reclined body position for a more secure ride.The harness adjusts easily from the front of the seat with one simple pull, and the base height adjusts for the right fit in your car. The car seat is compatible with all Safety 1st strollers that feature QuickClick, which allows you to attach the infant car seat to your stroller with one simple click, making it easy to use the car seat and a stroller together as a travel system.

Brand: Safety 1st


Installation Type: Latch


Material: Polyester


Color: Old Soul


Orientation: Rear Facing


Product Dimensions: ‎28 x 17 x 28 inches


Item model number: ‎IC379HMZ


Maximum weight recommendation: ‎30 Pounds


Material Type: ‎Polyester


Material Composition: ‎PP 66%, Steel 9.3%, Poly web thread (harnesses) 1.6%, Aluminum 0.2%, EPS 2.2%, Nylon 1.5%, POM 2%, Rubber 0.2%, Polyurethane/Polyester Foam Pad 17.1%


Style: ‎Original


Number of reclining positions: ‎1


Batteries required: ‎No


Orientation: ‎Rear Facing


Harness type: ‎5-Point


Item Weight: ‎11.14 pounds


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sep 16 – Sep 17

Yes, absolutely! You may return this product for a full refund within 90 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Amazing product
Color: Old Soul Style: Original
Exactly as pictured. Was so glad to get this during prime days.
Reviewed in the United States on July 15, 2025 by Jennifer Schnider Jennifer Schnider

  • Good extra base
Color: Base - Black Style: Extra Base
Worked as it should. Seat fit correctly into base and installed easy. Was easy to tighten fit well into car seat. Good option for an extra base
Reviewed in the United States on July 28, 2025 by stephani bruce

  • Easy to use
Color: Base - Black Style: Extra Base
Good for the second car and for the grandparents cars. Love the snap in car seat so we can easily change cars without the hassle of strapping in every time.
Reviewed in the United States on July 29, 2025 by MED

  • Save time moving bases from car to car!!
Color: Base - Black Style: Extra Base
As new Grandmother this is a must have. I purchased my and daughter and her husband the stroller and car seat base combo and this is an extra addition to go in many vehicles. So, so, so worth the purchase.
Reviewed in the United States on August 14, 2025 by Monica B.

  • Great second base
Color: Base - Black Style: Extra Base
This works great with our car seat. It easily snaps in and out. It has been nice to have one in each car so we don’t have to move it back and forth all the time. For the extra money we felt it was worth buying a second one.
Reviewed in the United States on June 17, 2025 by Savannah Christiansen

  • it fit
Color: Base - Black Style: Extra Base
Perfect fit with the seat. However, I'm not sure how secure it is because of the way it is designed. It wiggles a lot no matter how tight I pull the straps.
Reviewed in the United States on August 8, 2025 by Wendy

  • Car seat base
Color: Base - Black Style: Extra Base
Super easy to install! I bought an extra one that way we don’t have to switch between cars as much
Reviewed in the United States on May 30, 2025 by Abby Holland

  • Bottom to a car seat
Color: Base - Black Style: Extra Base
Worked for the cars eat we had.
Reviewed in the United States on June 2, 2025 by Sandie Black

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