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Description
diono double stroller Diono Quantum 2 Stroller Grey LinearBe adventure ready with the Quantum 3 in 1 luxury multi mode stroller, inspired by parents to provide everyday magic and designed with simplicity. Diono lovingly engineered an easy folding experience, a clever ? one step? brake, and a versatile stroller, which is suitable from birth. A truly distinctive design, created to make your life both simple and easy, every day. With clever ideas designed around you and your little one, Quantum is everything
Be adventure ready with the Quantum² 3-in-1 luxury multi-mode stroller, inspired by parents to provide everyday magic and designed with simplicity.Diono lovingly engineered an easy folding experience, a clever ?one step? brake, and a versatile stroller, which is suitable from birth. A truly distinctive design, created to make your life both simple and easy, every-day. With clever ideas designed around you and your little one, Quantum is everything you will ever need wherever life takes you? our Quantum² version is appointed in a technical performance fabric, leatherette handles and detailing, celebrating discrete luxury.
You're in Control
Our patented ?you’re in control?, fold, means Quantum2 folds at your pace, and always stays clean. And the power assisted unfold experience makes life even easier..
Above the Hustle & Bustle
With our beautiful and unique silhouette, the Quantum2 elevates your child so they sit above the hustle and bustle of busy urban streets.
We have you Covered
Generous and airy 3 tier canopy which envelopes the seat with a private & ?paparazzi proof?, cover.
One Step Stop
Intuitive, mom & dad friendly ?one step?, brake designed for big boots, small shoes and flip flop friendly!
Smooth Moves
Rivet free, symmetrical frame offers assured balance and super smooth turning circle.
Features:
- Easy Folding: Fast & unique easy fold experience. One handed folding operation in two simple, easy steps. Our patented ?you’re in control?, fold, means Quantum2 folds at your pace, and the fabrics always stay clean.
- Easy Storage: Once folded the Quantum2 seat and frame nest together to provide space saving design for storage at home or in the car.
- We’ve Got You Covered: Wide ranging 6 position telescopic handle, accommodating short and long strides, at every height. Generous and airy 3 tier canopy which envelopes the seat with a private & ?paparazzi proof?, cover. Discreet, hidden full mesh air vent and ventilation panel, providing a full view of your child while allowing air flow and natural light into the canopy.
- Reversible Seat: Reversible Seat, provides intimate parent facing for babies from birth and world facing experiences for toddlers.
- Accessories: The seat includes a leatherette wrapped bumper bar which can be swapped out and replaced with the Diono snack tray.
- Easy to Clean: A versatile angle adjustable foot rest and ?dangle free’, leg support, with hard wearing easy clean material.
- Safety & Comfort: The Quantum2 seated mode, provides a secure 5-point harness, with removable and washable harness pads. Layered and removable cushions to cuddle your little one from birth to toddlerhood.
- Car Seat Compatible: The Quantum2 stroller is car seat ready for a wide range of Infant Car Seats, with adapters included in the box.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.2 ★★★★★
Based on 11 reviews
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Product Reviews
★★★★★ 5
Wide and comfortable office chair
Color: Black, Style: Classic, Color: Black, Style: Classic
It's made of very fine leather and in good quality. It has a pump to pump air to the back of the chair, so I can adjust the softness of the chair back. It's a very wide chair. Maybe the widest one I ever bought. I can only sit half of its space. It's very easy to install, the alignments are perfect. Its arm and height is adjustable. The wheels are advance ones which make it move through the floor smoothly. It looks an advance chair if you want an upgraded experience.
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Reviewed in the United States on April 14, 2026
★★★★★ 5
Comfortable Seating
Color: Black, Style: Classic
I honestly didn’t expect this chair to be this comfortable, but it has exceeded my expectations in every way. I sit at my desk for long hours every day, and the adjustable air-pump lumbar support has been a total game changer. I love that I can fine-tune the firmness depending on how my back feels that day. My lower back pain has noticeably improved since switching to this chair.The seat is wide, thick, and very supportive without feeling stiff, which makes long work sessions much more comfortable. The armrests are another big plus—they adjust in so many directions that I can always find the perfect position for typing, reading, or relaxing. The chair feels extremely sturdy and well built, and it gives me confidence knowing it supports higher weight without wobbling.Assembly was straightforward and took about 20 minutes. Overall, this chair feels premium, comfortable, and thoughtfully designed. I would absolutely recommend it to anyone looking for a reliable, all-day office chair.
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Reviewed in the United States on March 28, 2026
★★★★★ 5
Nice chair, w/ good cust support
Color: Black, Style: Classic
I apologize for length, but if I am doing a review for other people I assume you want to have as
much info as possible to make a decision. I feel this chair is for tall/fat/both so will review it as
such. At 6’4” @ 350lbs I fit into both, but reviewing based upon my body, yours is different so
adjust according.
TLDR – Would buy again, cavernous comfy chair with excellent customer support. Only
personal dings against chair are the back could be taller, but added back due to support.
Parts + Fit/Finish + Assembly:
The parts have some heft and feel solid as expected for a chair designed for heavy people.
Material and stitching look proper and I see no flaws. My box was beat to hell and ripped
opened at one point. Packing material took the hit and did its job as the items were unaffected.
The gas cylinder for the chair was missing and assume lost during shipping. (see customer
service). Assembly was standard office chair fare with simple and clear instructions.
Wheels / Height / Controls:
I normally wouldn’t think of mentioning wheels, but it’s different than expected. They are
good, maybe too good. A slight kick to push you back on wood floors sends you flying. The
height adjustment for me is good/standard. At full height my feet are flat on the floor and
where I would have the chair even if it went higher. My wife (5’6”) at that height is about 2.5
inches above the floor. Taller people than myself may wish for more height. Chair controls are
standard fare and operate smoothly
Seat:
It’s large and with the arms is there is nothing even close to your hip/legs. I can put my fist on
my hips and my arms barely touch the chair arms. This is why you are thinking of this chair, and
for that you will not be disappointed. The seat is not pillow soft and IMHO a little firmer than I
liked at first, but after a few days got broken in or I adjusted. I am a programmer + gamer so
spend a lot of time in the chair for hours on end. Comfortable and no complaints at all. Seat
depth for me is ~1” from my knee and good with roughly 20.5” usable butt/thigh length. That
should be fine for big/tall but may be a bit much for big/short. Measure your current chair and
decide from there.
Back:
The back lets the chair down a bit for me, the big/tall user, as the target seems to be big/short
users. The back ends just below my shoulder-line. That obviously means no leaning my head
back and the headrest is squarely on my shoulder blades. Not uncomfortable, but I’d prefer a
taller back. For me personally I’d like it to be extended 4”, but that would likely be an issue for
shorter users. I feel if the manufacturer increased the back by 2 inches it would be an ideal
compromise for all users. The chair has an inflatable lumbar support, which I did not use as I
personally find those uncomfortable. Also note the chair is designed for a more proper posture
with a 90deg back and not a more relaxed 100-110deg. Neither pro/con as personal
preference.
Arms:
The design of the arms being supported by rear only as mentioned earlier allow for an
abundance of hip/thigh space. This is an excellent ergonomic design with a potential caveat.
More stress will be placed upon the connection/joint. The joint for this chair is just shy of 4” so
seems beefy but only time will tell if it holds up to the lateral force of leaning on it while
reading. My chairs tend to last 5-7 years, due to the right arm feeling wobbly or the chair
leaning to the right. The arm adjustments provide a nice front/back of ~3”, from touching chair
back to 3” gap between chair/armrest. The height is similar and also moves the armrest
forward about another 2”. At full forward/up the armrest are higher than I like so should easily
accommodate taller users.
Customer Service
My chair was missing a part that I suspect was lost during shipping due to box condition. I
contacted them Sun (7/20/2025 @ 1201). At 2228 that night I received a response that they
acknowledged the issue and gave a tracking order for the missing part. The part arrived Mon
7/28 and gave a few days to test it out for review Fri (8/1). Obviously you don’t want an issue,
but if an issue arises how a company handles it tells you a lot IMHO on how they feel about
their product. I am very pleased with their handling of the matter.
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Reviewed in the United States on August 4, 2025
★★★★★ 5
Great Chair
Color: Black, Style: Classic
The durability, recline, noise, fit, and appearance, and stability of the chair were all fantastic. As someone of a shorter height, the backrest which is normally way to high or short for my head fits perfectly. The chair itself is easy to assemble and very comfortable to sit in for long hours. I tend do a lot of work at home and this chair feels very comfortable without feeling the need to get up. The chair looks great set up in my office and is honestly a great office chair. For moving around a room, the wheel guides across my carpet very smoothly with struggling unlike my previous chair which would need a heavy push. Not only that, the chair is noiseless which is a plus for people who get bothered by little sounds when moving around. The fit could honestly fit anyone of any size as the chair itself is quite wide and roomy for me. The seat is also made up of faux leather and feels well stitched and quite durable.
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Reviewed in the United States on April 4, 2026
★★★★★ 4
Decent Price
Color: Black, Style: Classic
Chair arrived and was missing critical component so that I could not assemble it. Contacted seller and they sent me a similar component within 2 weeks. Chair was now easy to assemble and very comfortable to use for long periods. Although I wished it could raise another two inches. Also be aware chair might be challenging to get thru a standard 29-30inch doorway but not impossible. Thank You Seller for your help.
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Reviewed in the United States on October 23, 2025
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