The Nuna PIPA Urbn Flex System in Caviar is the all-in-one solution for families who move fast — converting seamlessly from a baseless infant car seat to a fully functional stroller frame in seconds. At just 11.2 lbs with the ring adapter attached, it’s road-tested in our boutique and built for every rideshare, terminal, and neighborhood run from birth through the toddler years.
A Frame Built for the Modern Family
The carbon fiber reinforced aluminum frame is as striking as it is functional — its unique weave pattern creates a visually modern aesthetic while keeping the total weight impressively low. The frame folds with the car seat ring adapter attached and stands on its own when folded, and a height-adjustable 3-position pivoting handle ensures comfortable strolling at any height. All-wheel suspension and large puncture-proof tires handle any terrain with ease, while a quick-engaging 1-touch rear-wheel braking system provides scuff-free security. A large basket holds up to 22 lbs of essentials, with a dedicated tracking device pocket to keep tabs on your gear wherever you go. A luxe leatherette-accented push bar and included carry bag for hands-free transport complete the frame experience.
PIPA Urbn Car Seat — Baseless, Lightweight & Travel-Ready
The PIPA Urbn installs using the integrated pipaFIX™ rigid latch in just 2 seconds — no base, no dirty wheels required — and releases from the vehicle with one hand for quick in-and-outs. An auto-reclining foot aids in proper vehicle installation, and a European belt path offers an additional installation option. Aeroflex™ foam minimizes force transferred to baby by absorbing and diffusing energy, while Side Impact Protection adds an extra layer of safekeeping. The iconic Sky drape™ canopy pulls down smoothly and attaches silently with magnets, and the full-coverage UPF 50+ extendable canopy features a flip-out eyeshade and XL peek-a-boo window. Merino wool and TENCEL™ lyocell infant head and body inserts are naturally soft and moisture-wicking, and every element from fabric to foam is free of added fire retardant chemicals. FAA certified for aircraft use. Fits 4–30 lbs, 16–29 inches. Not compatible with PIPA series base or RELX™ base.
Compatibility & What’s Included
The Flex System frame is compatible with the SWIV™ & TRIV™ series bassinet, any PIPA series car seat, and the Flex system seat (sold separately). Every system includes the PIPA Urbn car seat, Flex system stroller frame, carry bag, folding ring adapter, and latch guides. Frame dimensions open: 37"L × 21.5"W × 43.5"H; folded: 23"L × 21.5"W × 29.3"H. Frame alone weighs 8.5 lbs; frame with adapter 11.3 lbs. Car seat weighs 9 lbs.
Car Seat Installation at Posh Baby
Every PIPA Urbn purchased at Posh Baby includes a complimentary car seat safety installation and safety check by our trained staff — because confidence at installation is just as important as the seat itself.
Pair your Flex System with a Nuna infant car seat or browse our car seat accessories to complete your setup.
Posh Baby is a family-owned Portland boutique specializing in premium baby gear since 2006. Enjoy Tax-Free shopping in most states.
Build Your Baby Registry at Posh Baby
Create your universal baby registry with Posh Baby Portland — and add items from any store in the world. Our expert registry concierge team is here to guide you through every product category, from strollers and car seats to nursery furniture and essentials. Enjoy exclusive registry rewards, tax-free savings in most states, and the confidence of buying from a family-owned boutique that truly knows baby gear.
Universal Baby Registry
When you register with Posh Baby, you can add gifts from our store, Etsy, Amazon, Target, or that little boutique you love — shop small, shop anywhere. Add items regardless of whether your favorite stores even have a website. Our easy-to-manage registry has no limits on what you can add.
One registry. Every store. Endless possibilities.
Boutique Services Offered
Free Car Seat Install
Education Driven Experience
Try Before You Buy
Free Stroller Assembly
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Loyalty Rewards
1 Point for Every $1 Spent
Earn loyalty points for purchases and other actions, then turn those points into real rewards. We believe in rewarding the families who choose to support us — we don't take your trust for granted.
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Registry Rewards
Purchase any 3 of the items below — whether you buy them yourself or your guests do — and receive a 5% rebate gift card based on the total of those 3 items. Use it in-store or online.
Mattress Nursing Chair Bassinet Car Seat Stroller Carrier Bouncer
Eligible items must be purchased from Posh Baby. Gift card is issued after qualifying purchases are confirmed.
