
BOB Gear Revolution Flex 3.0 Duallie
Double
- Weight
- 33.1 lb
- Folded size
- 40 x 30.5 x 17.5 in
- Handlebar height
- 34.5–48 in
Best for: Two kids and a parent who runs trails
Check price on Amazon
DoubleNuna
Side by side, both seats from birth to 50 lb, and 25.2 lb in total. A PIPA car seat clicks onto the wider of the two seats without an adapter. It is 30.5 inches wide, folded or open, which Nuna says clears standard doorways and meets Disney's stroller size rules.
Best for: Twins or an infant plus toddler who travel
~$950list price at the last catalog update
See it at Nuna25.2 lb as Nuna weighs it.
Source: Nuna: "At 25.2 lbs it's lightweight for a double"
The first months: Seat is rated from birth. Near-flat recline with raised calf support for a carriage position; birth to 50 lb per seat.
| Seat family | How it attaches | Models the maker names |
|---|---|---|
| Nuna PIPA series | Clicks on, no adapter | Any PIPA series seat, on the wider seat only |
Source: Nuna TRVL dubl page: "attach any PIPA™ series infant car seat to the wider seat without an adapter"
The whole car-seat matrixNuna publishes no handlebar height for this model, so taller parents have nothing to check it against here.
Over by 13.75 in (3 sides over)
| Side | Folded | Limit | Over |
|---|---|---|---|
| Longest | 30.5 in | 22 in | +8.5 in |
| Middle | 27.75 in | 14 in | +13.75 in |
| Shortest | 19.75 in | 9 in | +10.75 in |
Measured against the Delta Air Lines carry-on size limit. How the check works
Source: Nuna: "Stroller dimensions (folded) L 19.75 in, W 30.5 in, H 27.75 in"

Double
Best for: Two kids and a parent who runs trails
Check price on Amazon
Double
Best for: Two kids on rough ground, with a hand brake for hills
Check price on AmazonDouble
Best for: Four preschoolers at once, at home or in a daycare