The Nuna DEMI Next paired with the PIPA Aire RX in Caviar is the complete travel system designed for growing families. The DEMI Next configures as a single or double stroller, while the PIPA Aire RX delivers ultra-lightweight, flame-retardant-free infant car seat protection. This bundle includes the DEMI Next stroller, PIPA Aire RX infant car seat, RELX base, and ring adapter, road-tested in our boutique from day one.
DEMI Next Stroller
The DEMI Next is a full-size stroller that expands to accommodate a second child with the optional sibling seat or bassinet — a smart long-term investment for families planning ahead. Rear-wheel Free Flex suspension™ and front-wheel progressive suspension handle any terrain, while a true-flat sleeper recline, MagneTech secure snap™ buckle, UPF 50+ extendable canopy, and height-adjustable push bar with luxe leatherette accent make every ride comfortable. The large basket and removable arm bar complete a stroller built for daily family life.
PIPA Aire RX Infant Car Seat
The PIPA Aire RX is crafted entirely from materials free of fire retardant additives — from fabric to foam. GREENGUARD Gold Certified and FAA certified for aircraft use, it installs in seconds with the RELX base or directly via seat belt with no base required. At just 6.2 lbs, it fits 4–30 lbs and up to 30 in, with Aeroflex™ foam, Tailor tech™ memory foam, Sky drape™, Merino wool and TENCEL™ lyocell inserts, and machine washable fabrics. Complimentary car seat safety installations and safety checks by our trained staff for all purchased seats.
RELX Base
The RELX base features a True lock™ rigid latch — 50% stronger than a typical belt latch — with indicators that turn green when secure. Four-position on-the-go recline with bubble-free angle guides, an integrated anti-rebound panel, crumple zone, and a multi-position steel stability leg that fits most vehicles including middle seats.
What's Included
Every bundle includes the DEMI Next stroller frame and seat, PIPA Aire RX infant car seat, RELX base, ring adapter, and a 2-year warranty on each component.
Browse our stroller accessories and Nuna car seat accessories to complete your setup. Please review our car seat return and exchange policy before purchasing.
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
Shop tax-free in most states** **exceptions may apply
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.
Thank you for shopping small.
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.
