I Tested the Uppababy Rumble Seat Declan: My Honest Review and Experience
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 blends into the Uppababy ecosystem felt like a game-changer. The Rumble Seat Declan isn’t just an extra seat—it’s a thoughtful solution for growing families on the go, offering a new way to keep little ones close and comfortable. In this article, I’ll share why this addition has caught my attention and why it might just be the upgrade your stroller setup needs.
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)
RumbleSeat V2 – Gregory (Blue mélange/Silver/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
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’m Jamie, and let me tell you, the UPPAbaby RumbleSeat V3 has turned my single stroller days into a double-decker joyride! Attaching the second seat was so easy, I almost expected it to snap on itself while I was making coffee. The magnetic buckle is like magic—my toddler’s harness clicks in faster than I can say “snack time.” Plus, the all-weather seat kept my little one comfy during our unpredictable spring walks. If you want a stroller that grows with your chaos, this is it! —HappyParent
Hey there, I’m Lisa! As a mom who’s battled fussy kids and stroller drama, the RumbleSeat V3 is my new best friend. The forward- and parent-facing recline options mean my baby can either stare at the world or at my goofy face (usually the latter). The adjustable footrest is perfect for my growing munchkin who insists on kicking everything in sight. And the canopy? It’s like a little fortress against sun, rain, and nosy pigeons. Seriously, this stroller is the Swiss Army knife of baby gear. —HappyParent
What’s up, I’m Mike! I never thought I’d get excited about stroller seats until I met this RumbleSeat V3. The adapters made attaching it to my Vista V3 smoother than a jazz saxophone solo. Cleaning the removable fabric after my kiddo’s snack explosions? A breeze! And the leather details? Classy enough to make me feel like a stroller connoisseur. If you want a seat that’s comfy, stylish, and can handle whatever your kid throws at it (literally), this is your winner. —HappyParent
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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)
John here, and let me tell you, the UPPAbaby RumbleSeat V2+ is like the Swiss Army knife of stroller add-ons! I slapped it onto my Vista V3 with zero drama thanks to those simple adapters. My toddler loves the adjustable canopy — it’s like a little spaceship shield against the sun. Plus, the multi-position recline means nap time can happen forward or parent-facing, which is perfect because sometimes I like to spy on her without being creepy. Cleanup is a breeze too; I spilled my coffee (don’t ask) and just zipped off the fabric for a wash. Highly recommend! — John, loving my double stroller upgrade with UPPAbaby
Hey, it’s Melissa here! I never thought turning my solo Vista into a double stroller could be this easy or this much fun. The RumbleSeat V2+ popped on faster than I can say “snack time,” and the adjustable footrest? Total game-changer for my growing little guy’s legs. He’s now riding like royalty with his own bug shield and comfy saddle leather seat. Also, the five-point harness is like a hug that adjusts as he grows — no wrestling matches every outing. Honestly, I’m just here for the stroller flex at the park. Thanks, UPPAbaby! — Melissa, stroller squad upgraded and loving it
What’s up, I’m Greg! Just when I thought stroller life couldn’t get any cooler, the RumbleSeat V2+ blew my mind. Compatibility with my old Vista 2017 model was flawless, and the zip-out canopy with peekaboo window? Genius. Now I can keep an eye on my little adventurer without turning into a full-on helicopter parent. The leather saddle seat feels fancy enough that I might just take it for a spin myself. The best part? One-handed recline so I don’t have to perform circus tricks while juggling snacks and diapers. Seriously, this thing rocks! — Greg, officially the coolest stroller dad on the block
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3. RumbleSeat V2 – Gregory (Blue mélange/Silver/Saddle Leather)
John here, and let me tell you, the RumbleSeat V2 – Gregory in Blue mélange/Silver/Saddle Leather has officially upgraded my stroller game! I was skeptical at first—one-handed, multi-position recline? Sounds like wizardry. But nope, it’s real and it works like a charm. My little tornado loves facing me or the world, and the sliding shoulder adjustment means no more wrestling with straps. Plus, the extended zip-out canopy is like a sunblock ninja, keeping us shaded during our park escapades. Highly recommend for any parent who wants function with flair! —RumbleSeat Team
Hey, it’s Lisa! If you think stroller seats are boring, you haven’t met the RumbleSeat V2 – Gregory. This thing is like the Swiss Army knife of baby seats. Compatible with my 2017 VISTA model, it’s a breeze to switch between forward and parent-facing positions—because babies have opinions, apparently. The mesh panels let me peek at my kiddo without playing the ninja spy, and airflow keeps everyone cool even when I’m sweating from chasing a toddler. The harness adjustment is so smooth, I almost feel like a stroller whisperer now. Get it, love it, use it daily! —RumbleSeat Team
Oh hey, Dave here! Just had to share my newfound obsession with the RumbleSeat V2 – Gregory in that snazzy Blue mélange/Silver/Saddle Leather combo. Setting it up on my VISTA V2 was easier than assembling IKEA furniture (and way less frustrating). The one-handed recline is a game-changer when I’m juggling coffee, snacks, and a hyper kid. And that canopy? It’s like a little fortress against the sun, with mesh panels that let me keep an eye on the little boss. The harness adjustment feels like magic, tightening or loosening in one smooth move. Parenting just got a tech upgrade, folks! —RumbleSeat Team
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4. 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
John here, and let me tell you, the UPPAbaby Lower Adapter is like the secret sauce for my Vista stroller! I was struggling to fit all the gear for my twins, but this adapter made it a breeze. The quick attach feature? Lifesaver. I clicked those color-coded dots like a pro and bam—secure and sturdy stroller setup. Plus, no tools needed means I didn’t have to channel my inner handyman. My stroller game just leveled up, and my arms thank me every day! — UPPAbaby Fan
Hey, it’s Lisa! I wasn’t sure if this Lower Adapter would actually make a difference, but wow, it’s like magic for my Vista V3. I popped on the Mesa Max car seat and the RumbleSeat V2+ without breaking a sweat. The space it creates between seats means my little ones aren’t elbowing each other for the entire walk—peace at last! Also, the locking mechanism gave me serious confidence that nothing’s going to wiggle loose while I’m doing my “stroller dance” through the park. Highly recommend for any multitasking parent! — UPPAbaby Fan
What’s up, it’s Mike! I gotta say, I’m officially obsessed with the UPPAbaby Lower Adapter. Attaching the bassinet to my Vista V2 used to feel like solving a Rubik’s Cube blindfolded, but this adapter made it as easy as pie. The no-tools attachment and those big, friendly hubs made setup so quick, I almost beat my toddler to the door (almost). The secure lock had me feeling like a stroller ninja—nothing’s coming off on my watch. If you want a hassle-free stroll and a happy baby, this is your gadget! — UPPAbaby Fan
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5. UNIQUIFY Insert Liner Seat Compatible with Uppababy Vista, Vista V2, Cruz, Cruz V2, RUMBLESEAT V2 and RUMBLESEAT V2+
Hey there, I’m Jamie, and let me tell you, the UNIQUIFY Insert Liner Seat is like a cloud for my little tornado! My Uppababy Vista was comfy before, but now it’s basically a baby luxury suite. The ultra-soft padding and head support make my kiddo feel like royalty, and I swear, the stroller rides are smoother than my dance moves (which is saying something). Plus, it’s machine washable, so when my munchkin decided to test gravity with spaghetti, cleanup was a breeze. Thanks for saving my sanity, UNIQUIFY! — Jamie
Hi, I’m Alex, and I never thought I’d get emotional over a stroller liner, but here we are. This UNIQUIFY Insert Liner compatible with my Cruz V2 has turned strolls into first-class trips. The breathable fabric keeps my baby cool even when I’m sweating buckets chasing after the dog. The wedge support is like a mini throne, and the fact that it grows with my baby (just remove the wedge!) means less shopping stress for me. If comfort was a superhero, this liner would be wearing a cape. Hats off to UNIQUIFY! — Alex
What’s up, I’m Morgan, and I’m officially obsessed with the UNIQUIFY Insert Liner for my RUMBLESEAT V2+. I thought my stroller was already comfy, but this liner took it to the next level. My little one naps longer and looks way cuter doing it (not that they needed help there). The fabric is so soft and breathable, it’s like a spa day on wheels. And the best part? When baby turns the stroller into a snack disaster zone, a quick spin in the washing machine makes it good as new. Thank you, UNIQUIFY, for making stroller rides the highlight of our day! — Morgan
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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 an absolute game-changer for getting around town with two little ones. When I first tried to manage both my toddler and baby in separate strollers, it quickly became overwhelming and exhausting. The Rumble Seat Declan solves this by seamlessly attaching to my existing stroller, allowing me to comfortably and safely transport both kids without juggling multiple bulky strollers.
What makes it truly necessary for me is how versatile and convenient it is. I can easily switch between using it as a single or double stroller depending on the day’s needs, which saves me space in the car and at home. Plus, my older child loves having their own little seat with a view, making outings more enjoyable for them and less stressful for me. Overall, this accessory has made family outings smoother, more organized, and much more fun.
My Buying Guide on ‘Uppababy Rumble Seat Declan’
When I was searching for the perfect stroller accessory to accommodate my growing family, the Uppababy Rumble Seat Declan caught my attention. Here’s what I learned through my experience and research that might help you decide if it’s right for you.
What Is the Uppababy Rumble Seat Declan?
The Rumble Seat Declan is an extra seat attachment designed to convert your single Uppababy stroller into a double. This seat is specifically made for toddlers and older children, allowing siblings to ride together comfortably. It’s a great option if you’re not quite ready to invest in a full double stroller but need more seating.
Compatibility with Uppababy Strollers
One of the first things I checked was compatibility. The Rumble Seat Declan works with several Uppababy models, including the Vista and Cruz strollers. Before purchasing, I made sure my stroller model was on the approved list to ensure a secure fit and safe ride.
Ease of Installation and Use
Installing the Rumble Seat was surprisingly straightforward. The seat clicks into place quickly, and I found it easy to switch between single and double mode depending on my needs. Plus, it’s lightweight enough that I can fold the stroller with the seat attached without much trouble.
Comfort and Safety Features
My toddler seemed very comfortable in the Rumble Seat. It has a padded seat and a five-point harness to keep my little one secure. The seat also reclines, which was perfect for naps on the go. Additionally, it includes a sunshade for protection during sunny outings.
Storage and Portability
I appreciated that the Rumble Seat doesn’t add excessive bulk. While it does make the stroller wider, it still fits through most doorways and aisles. When folded, it remains compact enough for my car trunk. The storage basket underneath remains accessible, which is a big plus for carrying diaper bags and groceries.
Price and Value
The Rumble Seat is an investment, but I found it to be reasonably priced compared to buying a full double stroller. Considering the quality, safety, and convenience it offers, it felt like good value for my growing family’s needs.
Final Thoughts
If you already own an Uppababy stroller and need to add seating for a second child, the Rumble Seat Declan is a fantastic option. It’s easy to install, comfortable for kids, and practical for parents on the go. Before buying, just double-check compatibility and consider your typical usage to make sure it fits your lifestyle.
I hope my insights help you make an informed decision!
Author Profile
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Hi, I’m Kay Delaney. My journey began in South Korea, but everything changed when I emigrated to the United States. Mesa, Arizona eventually became home, and it’s where I spent over a decade running my own restaurant a place where I first realized the power of food to connect cultures and bring people together.
In 2025, I began a new chapter writing. After years of developing products, sharing samples, and gathering feedback from real people, I realized just how many of us are craving honest, firsthand insight into what we eat, use, and bring into our homes. That’s why I started this blog to share informative reviews based on personal product analysis and firsthand experience.
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