SKU: 64318315699
nuna stroller seat liner

nuna stroller seat liner Nuna FLEX System Stroller Seat

Sale price$26.26 Regular price$29.18
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Ships within 48 hours · Estimated delivery Nov 7 - Nov 12

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For Your Every Summer RSVP, with Code: SUMMER15

Description

nuna stroller seat liner Nuna FLEX System Stroller SeatMeet the Flex System Stroller Seat by Nuna an add on seat that gives your PIPA urbn flex system (sold separately) a longer life. With the seat being able to face both ways, your baby gets a front row seat to the world or you! Designed to effortlessly click on, whether you're moving on from infant days or just switching this up, this seat keeps the ride going without skipping a beat (or a step). The 3 recline positions of the Flex System Stroller Seat

Meet the Flex System Stroller Seat by Nuna - an add-on seat that gives your PIPA urbn flex system (sold separately) a longer life. With the seat being able to face both ways, your baby gets a front-row seat to the world or you! Designed to effortlessly click on, whether you're moving on from infant days or just switching this up, this seat keeps the ride going without skipping a beat (or a step).

The 3 recline positions of the Flex System Stroller Seat by Nuna can be smoothly adjusted with one hand, the canopy is generous, and the comfort? Fully upgraded and unmatched. And thanks to the same featherlight carbon fiber reinforced frame, you still get that smooth fold and carry you signed up for at the start.

With this clever design, this system keeps growing and getting smarter. With this seat the PIPA urbn flex system transforms into a complete stroller ready to roll into a new chapter. 

Use

  • Rotating and removable armbar for easier ins and outs
  • From 6 months up to 50 lbs

Security

  • Self-guiding MagneTech secure snap™ buckles automatically lock into place
  • 3 to 5-point no-rethread harness makes it easy to fasten them in

Comfort 

  • Removable organic jersey insert provides better-for-baby comfort
  • Adjustable calf support and durable footrest to accommodate growth

Premium Details

  • UPF 50+ water-repellant canopy is extendable and features a flip-out eyeshade and peek-a-boo window
  • Luxe leatherette armbar adds style to your strolls
  • All-season seat keeps baby cozy in the winter and easily converts to mesh in the summer

Dimensions:

Open product: 24" x 22 - 33" x 17"    

Folded product: 24" x 10" x 17"

Weight: 6.4 lbs

Recommended usage: Up to 50 lbs 

Cleaning tips: Seat pad: Machine wash in cold water, delicate cycle. Drip dry. Do not tumble dry. Do not iron. Do not dry clean. Do not bleach.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 64318315699

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4.2 ★★★★★
Based on 13 reviews
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September Hall
Waukegan, US
★★★★★ 5
Great no show socks
Size: Small, Color: (725) Oxford Brown / Oxford Brown / Black
Very comfortable and perfect fit for my small feet. I love the full coverage sock feel with a totally no show sock.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 29, 2026
A
Verified Purchase
ABK
Port Orchard, US
★★★★★ 5
Great no shows for people with larger feet
Size: Large, Color: (001) Black / Black / Castlerock
Some of my favorite socks!! Great quality, fit, and material. I love that they don't slip down in my shoes, especially considering I have larger feet. I also love that Under Armour offers larger sizes in their socks considering everyone in our household has much larger feet than others.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 3, 2026
T
Verified Purchase
Tatacrio
Dallas, US
★★★★★ 5
Best liner socks EVER
Size: Medium, Color: (348) Silica Green / Silica Green / Hydro Green
I have them in every color and used to get them from Sams, but they stopped selling them and I was lucky to find them on Amazon. Got all colors again. They stay, it's all I'm gonna say! And don't show in any of my tennis shoes. Absolutely love them and wear them until they get holes. They last a LONG time too. They're on the thin side and my foot loves them because they tend to get hot. There's no shrinking, they wash great with exception of the white ones I couldn't manage to keep white - they turned a bit greyish.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 4, 2026
C
Verified Purchase
Christy F
Phoenix, US
★★★★★ 5
Great socks
Size: Medium, Color: Pink - 647
Well-made and comfortable to wear. Great for golf and other outdoor activities. Like them because they do not show above shoes.
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Reviewed in the United States on April 19, 2026
C
Verified Purchase
Cait E
Whiting, US
★★★★★ 5
These ACTUALLY stay put all day long - I was skeptical, but am so glad I took a chance on these
Size: Medium, Color: (014) Halo Gray / Halo Gray / Castlerock
I was so skeptical about whether these would stay on my feet all day without sliding down into my shoe - I’ve tried so many socks in the past with the silicone strip on the heel which failed. I’ve owned these for a couple months now and they have never slipped down - they stay put all day! I love the variety of colors to choose from, and the value per pack is great since six pairs come per pack (I thought it was only three when I first purchased and was pleasantly surprised by the additional pairs). They also have perfect thickness - not too warm to wear during the summer months with sneakers; I live in a tropical climate, though, so I’m not sure how they will do in cooler climates. I’ve washed each pair once or twice and the color and quality of the silicone has stayed so far (knock on wood). Overall: high recommend based on my experience so far!
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Reviewed in the United States on September 13, 2025

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