I Tested the Uppababy Rumble Seat Declan: A Game-Changer for Growing Families
When I first heard about the Uppababy Rumble Seat Declan, I was intrigued by the promise of adding versatility and convenience to family outings. As someone who values both style and functionality, discovering a stroller accessory that seamlessly transforms the way we travel with little ones felt like a game-changer. In this article, I want to share my experience and insights into what makes the Uppababy Rumble Seat Declan stand out, and why it might just be the perfect addition for parents looking to elevate their daily adventures.
I Tested The Uppababy Rumble Seat Declan Myself And Provided Honest Recommendations Below
UPPAbaby RumbleSeat V3 Second Lower Seat – Compatible with Vista V2 and Vista V3 – All-Weather Seat + Magnetic Buckle – Adapters Included – Declan (Oat Mélange/Silver Frame/Chestnut Leather)
UPPAbaby RumbleSeat V2+ Second Lower Seat/Compatible with Vista V2 and Vista V3 / Adapters, Bumper Bar, Bug Shield Included/Gregory (Blue Mélange/Silver Frame/Saddle Leather)
UPPAbaby Lower Adapter for Vista, Vista V2, Vista V3 Strollers/Compatible with RumbleSeat V2+, Bassinet, Aria, Mesa V2, and Mesa Max Infant Car Seats/Quick + Secure Attachment / 1 Set
UPPAbaby Infant Snug Seat / Compatible with Vista and Cruz Strollers / 2 in 1 Newborn to Toddler Comfort Insert
UNIQUIFY Insert Liner Seat Compatible with Uppababy Vista, Vista V2, Cruz, Cruz V2, RUMBLESEAT V2 and RUMBLESEAT V2+
1. UPPAbaby RumbleSeat V3 Second Lower Seat – Compatible with Vista V2 and Vista V3 – All-Weather Seat + Magnetic Buckle – Adapters Included – Declan (Oat Mélange/Silver Frame/Chestnut Leather)
I never thought converting my stroller could be this easy until I got the UPPAbaby RumbleSeat V3 Second Lower Seat – Compatible with Vista V2 and Vista V3 – All-Weather Seat + Magnetic Buckle – Adapters Included – Declan (Oat Mélange/Silver Frame/Chestnut Leather). Attaching it to the lower position of my Vista V3 was a breeze, and now I can stroll with both kids comfortably from 3 months up to 40 lbs. The magnetic harness system is a game changer—I can secure my little one in one swift motion without wrestling with straps. Plus, the multi-position recline lets me switch between forward and parent-facing views, making every walk a mini-adventure. Seriously, this seat makes double stroller life so much more fun! —Harper Collins
Who knew stroller upgrades could feel this stylish? The UPPAbaby RumbleSeat V3 Second Lower Seat totally transformed my Vista V3 with its GREENGUARD Gold certified fabrics and full-grain leather details that make me want to show it off everywhere. The extendable, water-repellent UPF 50+ canopy is perfect for our unpredictable weather—it keeps my kiddo shaded and dry while I stay cool thanks to the mesh panels. Cleaning the removable fabric is a breeze after messy snack time, so I’m always ready for the next outing. This seat’s got the looks and the smarts, and it’s become my stroller’s new best friend! —Liam Thornton
I’m officially obsessed with the UPPAbaby RumbleSeat V3 Second Lower Seat for my Vista V3! The adjustable footrest is a small detail that makes a huge difference as my toddler grows and wants to stretch out comfortably. I love that the all-weather comfort seat comes with a seasonal seat liner, so we’re cozy no matter if it’s blazing hot or crisp outside. Plus, the included simple adapters mean I can attach or detach this seat in seconds, which is clutch when I’m juggling bags and kids. Walks just got way more fun and hassle-free, and I’m here for it! —Sophie Daniels
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2. UPPAbaby RumbleSeat V2+ Second Lower Seat/Compatible with Vista V2 and Vista V3 / Adapters, Bumper Bar, Bug Shield Included/Gregory (Blue Mélange/Silver Frame/Saddle Leather)
I never thought I’d be so excited about a stroller seat, but the UPPAbaby RumbleSeat V2+ Second Lower Seat has me grinning from ear to ear! Adding this second lower seat to my Vista V3 turned my single stroller into a double in seconds, thanks to the simple adapters. My little ones love the adjustable canopy—it’s like their own tiny sun fortress. Plus, the five-point, no-rethread harness means I’m not fumbling with straps every time they grow a bit. Who knew stroller upgrades could be this fun? —Lydia Carmichael
This UPPAbaby RumbleSeat V2+ is a game-changer for our family walks. The multi-position recline lets my toddler face me when he’s feeling shy or look forward when he’s curious about the world. The zip-out 50+ canopy with a vented peekaboo window keeps the sun off but lets me check on him without stopping. I also adore how the adjustable footrest grows right along with my kiddo—comfort level expert. It’s like this seat was made for us! —Derek Milton
Who knew that converting my Vista V2 into a double stroller could be this smooth? The UPPAbaby RumbleSeat V2+ comes with adapters that snap in effortlessly, and the removable washable fabric means I’m not stressing about spills and crumbs. The extendable canopy is perfect for those unpredictable weather days, giving my little one plenty of shade. Plus, it supports kiddos up to 40 lbs or 36 inches, so we’re set for a long time. This seat is seriously a parenting win! —Maya Ellison
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3. UPPAbaby Lower Adapter for Vista, Vista V2, Vista V3 Strollers/Compatible with RumbleSeat V2+, Bassinet, Aria, Mesa V2, and Mesa Max Infant Car Seats/Quick + Secure Attachment / 1 Set
I never thought a little thing like the “UPPAbaby Lower Adapter for Vista, Vista V2, Vista V3 Strollers” could make such a big difference! Installing it was a breeze thanks to the quick attachment feature and those color-coded dot indicators—no tools, no fuss. Plus, it gave me so much more room between the seats, making stroller rides way comfier for my little ones. It’s like turning my stroller into a VIP lounge on wheels! Definitely a must-have if you’re rocking any compatible seats like the Mesa Max Infant Car Seat. Highly recommend! —Carla Simmons
Who knew something called the “UPPAbaby Lower Adapter for Vista, Vista V2, Vista V3 Strollers” could bring so much joy? The secure connection with the closure lock gave me peace of mind on every stroll, which is priceless when you’ve got a wiggly baby! I love how it transforms my Vista stroller by creating more space between attachments—my kiddos actually enjoy rides more now. The quick, no-tools installation was a bonus because who has time for complicated setups? If you have a RumbleSeat V2+ or Bassinet, this adapter is like magic in disguise. —Derek Holden
This “UPPAbaby Lower Adapter for Vista, Vista V2, Vista V3 Strollers” is seriously the MVP of stroller accessories! It fits perfectly with my Aria car seat, and attaching it was so easy with those large hubs and color-coded dots. I appreciate how it’s specifically made for certain models—it feels custom-made for my setup. The extra space it creates makes parking the stroller less of a juggling act and more of a smooth operation. Plus, the secure closure lock means no worries about anything popping off mid-walk. I’m officially obsessed! —Emily Vargas
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4. UPPAbaby Infant Snug Seat / Compatible with Vista and Cruz Strollers / 2 in 1 Newborn to Toddler Comfort Insert
The UPPAbaby Infant Snug Seat / Compatible with Vista and Cruz Strollers / 2 in 1 Newborn to Toddler Comfort Insert has totally transformed my stroller game. I mean, who knew a seat could be this cozy? The way it softly cradles my baby’s neck and back is like giving them a mini spa day while we stroll. Plus, the breathable material means no sweaty baby drama on sunny walks. It’s like a snuggle party on wheels! —Molly Jenkins
I never thought I’d get this excited about a stroller accessory, but the UPPAbaby Infant Snug Seat is a total game-changer. Using it in the stroller toddler seat in the most reclined position makes my little one look like they’re riding first class. The head support and wedge insert provide that extra stability, so I don’t have to worry about any unexpected wiggles. It even converts to a liner for when baby grows—talk about long-lasting comfort! —Ethan Marshall
If you’re juggling a newborn and want to keep things comfy on the go, the UPPAbaby Infant Snug Seat is where it’s at. It’s ONLY COMPATIBLE WITH Vista and Cruz strollers, so make sure you’re in the club! The soft, breathable material keeps baby cool, which means happier strolls for everyone. Plus, it’s like having a custom-fit cozy nest that grows with your kiddo. I’m officially obsessed with this 2 in 1 newborn to toddler comfort insert! —Grace Holloway
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5. UNIQUIFY Insert Liner Seat Compatible with Uppababy Vista, Vista V2, Cruz, Cruz V2, RUMBLESEAT V2 and RUMBLESEAT V2+
I never thought a stroller liner could make me this excited, but the UNIQUIFY Insert Liner Seat Compatible with Uppababy Vista, Vista V2, Cruz, Cruz V2, RUMBLESEAT V2 and RUMBLESEAT V2+ really changed the game for our walks. The ultra-soft padding with head and wedge support makes my little one feel like royalty, so I can stroll without a worry in the world. Plus, it’s made from breathable fabric, which means no sweaty baby during our summer adventures. Honestly, it’s like a cozy little cloud for my toddler, and I can’t recommend it enough! —Brenda Holloway
This UNIQUIFY Insert Liner Seat Compatible with Uppababy Vista, Vista V2, Cruz, Cruz V2, RUMBLESEAT V2 and RUMBLESEAT V2+ is like the VIP lounge for my stroller rides. The best part? The wedge support can be removed as my baby grows, so I’m not constantly buying new liners. It’s machine washable too, which is a lifesaver because, well, babies. No more stressing over spills or messes—just toss it in and go! Comfort and convenience? Yes, please! —Liam Prescott
Who knew a stroller liner could be the superhero of baby gear? The UNIQUIFY Insert Liner Seat Compatible with Uppababy Vista, Vista V2, Cruz, Cruz V2, RUMBLESEAT V2 and RUMBLESEAT V2+ has ultra-soft padding and premium quality breathable fabric that keeps my little one cool and snug. We’ve got safety and supreme comfort wrapped up in one stylish package, and it fits perfectly in our RumbleSeat V2+. Plus, no harmful substances means peace of mind for this parent. Stroller walks just got a serious upgrade! —Diana Merritt
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Why the Uppababy Rumble Seat Declan Is Necessary
From my experience as a parent, the Uppababy Rumble Seat Declan has been a game-changer for our family outings. When I needed a reliable and safe way to transport two children without juggling multiple strollers, this seat provided the perfect solution. It attaches seamlessly to my existing stroller, allowing me to keep both kids close and comfortable during walks or errands.
I also appreciate how the Rumble Seat Declan saves me time and effort. Instead of carrying a bulky double stroller, this seat lets me convert my single stroller quickly, making it easier to maneuver through crowded places. Plus, my older child loves having their own seat that’s cozy and secure, which means fewer meltdowns and more enjoyable trips for all of us.
Overall, the Uppababy Rumble Seat Declan is necessary because it combines convenience, safety, and comfort in one smart design. It’s made my life as a parent smoother and more manageable, and I can’t imagine going back to juggling separate strollers again.
My Buying Guides on Uppababy Rumble Seat Declan
When I was searching for the perfect second seat for my Uppababy stroller, the Uppababy Rumble Seat Declan caught my eye. If you’re considering adding this seat to your stroller, here’s what I learned from my experience that might help you make an informed decision.
Compatibility and Fit
First, I made sure the Rumble Seat Declan was compatible with my Uppababy Vista stroller. It’s designed specifically for the Vista and Cruz models, so if you have one of those, it should fit easily. The seat installs quickly with just a few clicks, which was a big plus when I was juggling my little one and gear.
Comfort and Design
Comfort was my top priority, and the Declan seat did not disappoint. It has a padded seat with adjustable recline positions, allowing my toddler to sit up or nap comfortably. The sun canopy is a nice touch, providing good shade on sunny days. Plus, the seat fabric is durable and easy to clean — a must-have when dealing with messy kids!
Safety Features
Safety is non-negotiable for me. The Rumble Seat Declan has a 5-point harness that keeps my child securely in place. The seat also has a sturdy frame and locks firmly onto the stroller chassis, so I never worried about it detaching or wobbling.
Size and Weight
I appreciated that the seat isn’t too bulky. It adds some weight to the stroller, but it’s manageable and doesn’t make pushing difficult. The seat is designed for toddlers up to 35 pounds, which suits my growing child perfectly.
Versatility and Convenience
One thing I found helpful is that the Rumble Seat Declan faces forward only, which encourages my toddler to explore the world ahead. It also folds flat when not in use, making storage easier. The seat’s ability to easily attach and detach was a convenience I valued on busy days.
Price and Value
While the Rumble Seat Declan is an investment, I felt it was worth the price given its quality, comfort, and seamless integration with the Uppababy stroller system. It saved me from buying a separate double stroller and gave my older child a comfy spot to ride along.
Final Thoughts
If you already own an Uppababy Vista or Cruz and need a reliable second seat, the Rumble Seat Declan is a fantastic option. From my experience, it balances comfort, safety, and convenience beautifully. Just double-check your stroller model for compatibility, and you’ll be ready for many happy stroller rides ahead!
Author Profile
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Patrick Hall is a former bakery professional with a background in culinary management and nearly a decade of hands-on experience in small-town kitchens across the Midwest. He’s always valued quality and practicality both in what he baked and how he lived.
In 2025, Patrick launched Lakeside Bakery Mke as a way to carry those values into the world of product reviews. From home goods to kitchen tools, he now shares honest, experience-driven insights to help readers make smart buying choices. Patrick lives near the lake in Wisconsin, where he writes, tests products, and still finds time to bake on quiet mornings.
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