Safety 1st Grow and Go Flex 8-in-1
The Safety 1st Grow and Go Flex 8-in-1 holds a child up to 50 lb, per Safety 1st. The maker lists the seat as reclining flat for use from birth. The seat faces you or the world.
- 50 lbHolds up to
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How the Grow and Go Flex 8-in-1 stacks up
Against the 95 full-size strollers we track. The shaded band is where the middle half of them fall; the dot is this one.
The same as most full-size strollers (50 lb).
Infant car seats and the Grow and Go Flex 8-in-1
3 infant car seats on Cribpicks from 1 brand are named with the Grow and Go Flex 8-in-1 in a maker's fit list. Listed car seat fit: Safety 1st onBoard FLX / onBoard 35 FLX / onBoard LTX infant car seats (QuickClick).
| Car seat | How it is listed |
|---|---|
| Safety 1st onBoard 35 FLX | Named by Safety 1st |
| Safety 1st OnBoard FLX | Named by Safety 1st |
| Safety 1st onBoard LTX | Named by Safety 1st |
Matched by brand and model name. Fit can depend on the model year, so check yours with both makers.
Grow and Go Flex 8-in-1: from newborn to toddler
| Stage | What Safety 1st lists |
|---|---|
| From birth | Yes, seat lies flat |
| Seat faces | You or the world (reversible) |
| Seat holds | Up to 50 lb |
| Second child | Does not convert to a double |
Limits as the maker lists them. Follow the manual for your stroller.
Where to buy the Grow and Go Flex 8-in-1
Prices and availability change. We may earn a commission from some links.
- Check for recalls: Search the agency's recall list with the model number and date code from the label: CPSC recall search.
- Use and supervision: follow the maker's warnings on the product, and see CPSC's Safe Nursery guide. Check the label and the maker's instructions, and ask your pediatrician about your child.
Full specs
| Safety 1st Grow and Go Flex 8-in-1 | |
|---|---|
| Seat holds up to | 50 lb |
| From birth? | Yes, seat lies flat |
| Seat faces you or the world | Yes |
| One-hand fold | Yes |
| Stands when folded | Yes |
| Converts to a double | No |
| Basket | Extra-large storage basket |
| Car seats | Safety 1st onBoard FLX / onBoard 35 FLX / onBoard LTX infant car seats (QuickClick) |
| Folds with the seat on | Yes |
| In the box | Parent tray with two cup holders, child tray |
| Sold as a travel system | Grow and Go Flex 8-in-1 Travel System / Deluxe Grow and Go Flex 8-in-1 (onBoard 35 FLX) |
Compare the Grow and Go Flex 8-in-1 with
How each closest rival differs from the Grow and Go Flex 8-in-1, from the makers' specs.
- CybexPriam 4Compare side by side
- EvenfloPivot Modular11.7 cu ft folded50 lb limitCompare side by side
- Baby TrendPassport Switch50 lb limitCompare side by side
- Baby TrendPassport Seasons All-Terrain50 lb limitCompare side by side
Grow and Go Flex 8-in-1: questions answered
From Safety 1st's published specs, last checked 2026-11-06.
Can you use the Safety 1st Grow and Go Flex 8-in-1 from birth?
Yes, seat lies flat. Car seats: Safety 1st onBoard FLX / onBoard 35 FLX / onBoard LTX infant car seats (QuickClick).
What is the weight limit of the Safety 1st Grow and Go Flex 8-in-1?
The seat holds a child up to 50 lb.
Can the Safety 1st Grow and Go Flex 8-in-1 be converted to a double stroller?
No. For two kids, see our double strollers.
Still wondering? Write to us at hello@cribpicks.com and we'll look it up.
More full-size strollers
- Safety 1stGrow and Go Sprint 6-in-150 lb limit10 lb basket
- Safety 1stTurn and Go 360 Rotating Modular50 lb limit
- Safety 1stSmooth Ride50 lb limit
- MonbebeHilaire 6-in-1 Modular50 lb limit10 lb basket
- GracoModes Element50 lb limit
- GracoModes Trio
Where these specs come from
- safety1st.com/products/grow-and-go-flex-8-in-1-modular-travel…
- safety1st.com/products/deluxe-grow-and-go-flex-8-in-1-travel…
- babylist.com/gp/safety-1st-grow-and-go-flex-8-in-1-travel-system…
Last checked 2026-11-06. Spot something wrong? Tell us. Read our editorial and safety policy and corrections.