



The Nuna Flex System Lightweight Frame + PIPA Series Adapter streamlines everyday travel by turning your infant car seat into a smooth-rolling stroller in seconds. At just 11.3 lbs, this carbon fiber–reinforced frame is purpose-built for quick pivots and city convenience. It folds compactly, stands on its own, and rolls on never-flat tires to glide from curb to café without missing a beat.
Meet the moment with flexible compatibility: snap on any PIPA series infant car seat for from-birth travel, pair with the SWIV™ or TRIV™ series bassinet, or attach the Flex System Stroller Seat as your little one grows up to 50 lbs. All-wheel suspension, a 1-touch rear brake, height-adjustable handlebars, and a generous 22-pound basket with a dedicated tracking-device pocket make every outing feel dialed in and effortless.
Nuna, founded in 2007 and inspired by Dutch design, creates premium baby gear that blends safety, innovation, and style. From award-winning car seats and strollers to practical home gear, Nuna products are crafted with high-quality, flame-retardant-free materials and thoughtful details for modern families. Known for advanced safety features and sleek, functional designs, Nuna makes parenting easier and more stylish. Explore Nuna at ANB Baby for trusted baby gear that’s built to last and designed around your life.
Featherweight Frame: Carbon fiber reinforced aluminum chassis weighs only 11.3 lbs for effortless lifting and loading.
Instant Travel System: Use with any PIPA series infant car seat; compatible with SWIV™ and TRIV™ series bassinet, or attach the Flex System Stroller Seat.
Compact Self-Stand Fold: Folds with the ring adapter attached and stands on its own for easy hallway or trunk storage.
Smooth, Confident Ride: All-wheel suspension with durable never-flat tires and a quick-engaging 1-touch rear brake.
Big-Capacity Basket: Oversized underseat basket holds up to 22 lbs and includes a discreet tracking-device pocket.
Comfortable for You: Height-adjustable, 3-position pivoting handle keeps every stroll ergonomic.
Built to Go: Carbon fiber weave detailing delivers modern aesthetics with serious strength and durability.
| Dimensions: | 37" L × 21.5" W × 43.5" H |
| Folded Dimensions: | 23" L × 21.5" W × 29.3" H |
| Weight: | 11.3 lbs |
| Materials: | Carbon fiber reinforced aluminum frame; durable, never-flat tires |
| Compatibility: | Any PIPA series infant car seat; compatible with SWIV™ and TRIV™ series bassinet, or attach the Flex System Stroller Seat. |
| Brake: | 1-touch rear-wheel braking system |
| Suspension: | All-wheel suspension |
| Storage Basket Capacity: | Up to 22 lbs |
| Handlebar: | 3-position height-adjustable, pivoting |
| Recommended Use | |
| Age Range: | From birth with compatible PIPA series infant car seat or bassinet; up to 50 lbs with stroller seat |
| Capacity: | Child up to 50 lbs (with Flex System Stroller Seat) |
| Use For: | Everyday travel, car-to-curb transfers, urban strolling |
| Care Instructions: | Spot clean frame with mild soap and water; dry thoroughly. Do not use harsh solvents or pressure wash. |
| Brand: | Nuna |
| Caviar Manufacturer SKU: | SF16070CVR |
| UPC: | 8721094548255 |
The frame weighs only 11.3 lbs, making lifts and trunk loading exceptionally easy.
All Nuna PIPA series infant car seats attach directly using the included folding ring adapter.
Yes, it is compatible with the PIPA series infant car seat & SWIV™ and TRIV™ series bassinet, or attach the Flex System Stroller Seat.
Up to 50 lbs when used with the Flex System Stroller Seat.
Yes. The frame folds with the car seat ring adapter attached and stands on its own.
All-wheel suspension and durable never-flat tires help smooth out uneven sidewalks and paths.
The underseat basket supports up to 22 lbs and includes a pocket for a tracking device.
Yes. A 3-position height-adjustable, pivoting handlebar provides a comfortable push for different heights.
A quick-engaging 1-touch rear-wheel brake offers secure, scuff-free stops.
Spot clean with mild soap and water and dry thoroughly. Avoid harsh cleaners or pressure washing.


