3-in-1 Car Seat
3-in-1 Car Seat
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TriSeat™ 3-in-1 Car Seat One seat that grows with your child. 3 Modes: Rear-Facing (5–40 lb) • Forward-Facing (26.5–65 lb) • Highback Booster (40–100 lb) Easy Adjustments: 10-position headrest • 6-position recline • No-Rethread harness system Built for Safety & Comfort: Steel-reinforced frame • LATCH installation • Side-impact protection Removable inserts • Machine-washable seat pad • 2 cup holders Safe. Comfortable. Made to grow.
Standard Shipping (4-7 Business Days).
The triSeat 3-in-1 Car Seat is built with a durable steel-reinforced frame and a high-impact plastic shell for strength and safety. It features a soft polyester fabric cover that is machine washable, along with energy-absorbing foam padding to provide comfort and added protection for your child.
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No-Rethread Simply Safe Adjust Harness
Adjust the height of the 10-position headrest and harness in one motion with the Simply Safe Adjust Harness System, ensuring your child is always properly secured.
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6-Position Recline
6-position recline allows for a better installation and helps keep your growing child comfy.
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Steel-Reinforced Frame
Steel-reinforced frame provides strength and durability for 10 years of use.
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Level Indicator
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Integrated Harness Storage
Harness storage compartment keeps the harness safely stored without removing while in belt-positioning booster mode.
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Machine Washable Seat Pad
Seat pad is comfortable and machine washable.
FAQ
What weight and age range is the triSeat suitable for?
The triSeat covers multiple stages of your child’s growth:
- Rear-facing harness: about 5–40 lbs
- Forward-facing harness: about 26.5–65 lbs
- Highback booster: about 40–100 lbs
This lets you use one seat from infancy through the big-kid booster stage.
How does the harness adjustment work?
It uses a No-Rethread Simply Safe Adjust Harness System, meaning you can adjust the headrest and harness height together with one motion — no rethreading needed. There are 10 headrest height positions to choose from for a better fit as your child grows.
What are the installation options?
The triSeat is LATCH-equipped for easy installation, and it also works with a vehicle seat belt in booster mode. The seat includes an easy-to-read level indicator to help get the correct installation angle in rear-facing mode.
Can the seat recline?
Yes, the seat features 6 recline positions, which help make longer rides more comfortable and improve installation angles in different vehicles.
Can I use this seat as a standalone booster without the back?
No — the triSeat does not convert to a backless booster. Booster use requires keeping the highback attached.