KidShortlist
Safety 1st · High-back booster

Safety 1st S1 Rümi Air

Based on 2 independent scored tests: Insurance Institute for Highway Safety (IIHS) (2012), Insurance Institute for Highway Safety (IIHS) (2011). The test scores average 90. With only 2 tests, the ranking score is pulled down a little until more testers confirm it.

Tested for US & Canada
73
Shortlist score
Good
Single test

Where to buy

This seat is certified for US & Canada. Car seats may only be used in the market they're approved for, so we don't link to shops in Czechia.

Older test. The newest test of this product is from 2012. It may no longer be sold, or sold in a revised version, so it isn't ranked.

Test results

Each score as the tester published it, converted to our 0–100 scale. Weight is how much the result counts towards the score.

Insurance Institute for Highway Safety (IIHS) US · Lab test
IIHS booster evaluation results 2011 (released Oct 13, 2011)
Best Bet
Our scale90
weight 0.20
from the full list of current IIHS booster ratings published that year (includes carry-over models); mode (highback/backless) not stated in this table; rating covers booster-mode belt fit only
View on web.archive.org ↗

Top-ranked alternatives

How we turn these into one number: methodology. Tested 2011–2012.

KidShortlist

We don't test products ourselves. Every score here comes from an independent tester and links back to it. We combine 4,061 results from 26 sources.

Read before buying

Several testers are paywalled, so we only include what they publish openly. Models change and get recalled. Check the tester's own page and the retailer listing before you buy.

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