Safety 1st EverSlim 4-in-1 Convertible Car Seat

Our score 9.24 / 10

Research by Peter Crona Last updated Method How we research

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Published ranges do not establish child fit; exact US head/harness clearance was not verified.

Safety 1st EverSlim 4-in-1 Convertible Car Seat

Pros

  • A slim shell may be worth comparing when back-seat width is tight.

Cons

  • Actual fit varies, and exact CC419HMS head/harness clearance thresholds were not verified.
  • Three-across fit depends on the vehicle and adjacent seats.
US brand
Max Weight
100 lb (45.4 kg)
Seat Use
Booster, Infant, Toddler
Install Method
Seat belt
Product page
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Price/Buy
Check price at Amazon

For US model CC419HMS, the maker lists rear-facing at 5–40 lb and 19–40 in, forward-facing harness at 30–65 lb and 34.4–49 in, and both booster modes at 40–100 lb and 43.4–52 in. NHTSA recommends children under one ride rear-facing and keeping children rear-facing as long as possible within seat limits. The maker says actual fit varies. Review of exact-model sources did not verify the head and harness clearance thresholds, so the published ranges alone cannot confirm transition fit. Fit also depends on the vehicle installation and neighbouring seats; do not assume three-across fit from a slim design.