Safety 1st TriMate Convertible Car Seat

Versatile Transition from Baby to Big Kid

Our TriMate All-in-One car seat seamlessly transitions from rear-facing baby seat (5–40 lbs. and 19"–40") to forward-facing toddler seat (30–65 lbs. and 34.4"–49"), and finally to a belt-positioning booster (40–100 lbs. and 43.4"–52). This ensures your child is always safe and comfortable at every stage of growth.

Maximize Backend Seating Space

At just 17" across without cup holders, this ultra-slim design lets you fit three car seats across the back seat—fitting snugly in most vehicles—and still provides ample space for your growing family.

Convenient and Hassle-Free Installation

Quick and straightforward installation makes setting up a breeze. The 9-position headrest adjusts with just one hand, the harness system can be adjusted without re-threading, and visible belt paths simplify the process. Say goodbye to fumbling adjustments and enjoy smooth, comfortable rides.

Comfortable and Cozy for Little Ones

For infants, a soft, memory-foam infant insert ensures your child stays cozy and secure. The insert is easy to clean and customize for your baby's comfort.

Easy-to-Clean Design

Two removable, dishwasher-safe cup holders and a machine-washable, dryer-safe removable seat pad make cleanup a snap, ensuring freshness after even the messiest adventures in the car.