Two Under Two Strollers: Graco Ready2Grow, Chicco Cortina Together, and Strolee Side-by-Side Tested

If you’ve recently discovered you’re expecting again while your first child is still firmly in stroller territory — congrats, and also, buckle up. “Two under two” is the shorthand parents use when their two kids are less than two years apart in age, which means for a meaningful stretch of time you’ll have one child who can’t walk distances and another who really can’t. A double stroller becomes less of a convenience and more of a genuine logistical necessity. The question isn’t whether you need one; it’s which one won’t make you want to leave it in a ditch on the third trip to the pediatrician. This article breaks down three of the most-discussed options in the accessible-to-mid-range tier: the Graco Ready2Grow LX, the Chicco Cortina Together, and the Strolee Lightweight Double. We’ve dug into aggregated owner reviews, published spec comparisons, and the kind of real-world commentary that only surfaces after someone has hauled a stroller up a third-floor walkup — alone — four times in one afternoon.

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The Frame That Matters: Solo Manageability

Before we get into seat configurations and canopy UPF ratings, let’s agree on the metric that actually drives double-stroller satisfaction: can one adult fold, lift, and load this thing without help?

This isn’t a minor detail. Across aggregated reviews in BabyGearLab’s Double Stroller Reviews and Ratings (2025 edition) and WhatToExpect’s Double Stroller Buying Guide (2025), the single most consistent differentiator between a stroller that earns five stars and one that gets returned is whether the solo parent can manage it on a typical day. A typical day for a lot of families looks like this: third-floor apartment, no elevator, three kids in three years, multiple daily trips. That scenario — wrestling a fully loaded double stroller through a stairwell door while wearing a baby carrier and keeping a toddler from touching the handrail — is the most vivid benchmark in this entire product category, and it’s the lens through which we’ll evaluate each model.

By the Numbers

Model	Weight (stroller only)	Folded width (approx.)	Seat arrangement	Infant car seat compatible?
Graco Ready2Grow LX	~32 lbs	~25 in	Inline tandem	Yes (Graco SnugRide series)
Chicco Cortina Together	~29 lbs	~30 in	Side-by-side	Yes (Chicco KeyFit, Fit2)
Strolee Lightweight Double	~20 lbs	Compact inline	Tandem seated	Limited adapter support

Weight figures are sourced from manufacturer specification sheets as cited in BabyGearLab’s Double Stroller Reviews and Ratings, 2025 edition.

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The Three Contenders, Head to Head

Graco Ready2Grow LX: The Swiss Army Knife for Apartment Life

The Ready2Grow is Graco’s answer to the question: what if a stroller could do basically everything? It ships as an inline tandem — meaning the seats are arranged front-to-back, like a train, rather than side-by-side — which matters enormously for doorway clearance and navigating narrow grocery store aisles.

The twelve seat configurations aren’t marketing fluff; owners actually use them. The most common pattern reviewers describe is an infant car seat in the rear adapter bracket and a toddler seated up front, which covers exactly the two-under-two scenario. Graco’s ecosystem advantage here is real: the Ready2Grow is designed to work with the Graco SnugRide 35, SnugRide 35 Lite, and SnugRide 35 Elite infant car seats — among the most widely owned infant seats in the U.S. market. If you’re already in the Graco ecosystem, this click-in compatibility is a genuine time-saver.

What owners consistently report: Wirecutter’s Best Double Strollers guide (updated 2025) highlights the Ready2Grow’s value proposition as unusually strong for the price tier, citing its versatility across the infant-to-toddler transition. Parent reviewers tracked in Parents.com’s Best Double Strollers Tested and Reviewed (2025) frequently describe the fold as manageable solo once you’ve practiced it — emphasis on “once you’ve practiced it.” The learning curve is real; the stroller is not intuitive to fold the first several times. After two weeks of daily use, however, the fold becomes muscle memory, and the inline width makes most doorways passable without angling.

The honest tradeoff: At roughly 32 pounds unloaded, this isn’t the stroller you want if your primary use case is transit or frequent car-trunk loading. The rear seat — used by the older toddler in sit-or-stand mode — has limited recline, which can create friction for a child who still naps on the go.

One critical note about product photos: Multiple reviewers across retail listings flag that promotional images of the Ready2Grow show it configured with infant car seats that are not included in the base purchase. The stroller frame ships alone. Car seats are sold separately. This is not unique to Graco — it’s a category-wide practice — but it’s worth stating plainly so no one builds a wrong budget.

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Chicco Cortina Together: The Twin Parents’ Default

The Chicco Cortina Together occupies a slightly different niche. Where the Ready2Grow is optimized for close-in-age siblings at different developmental stages, the Cortina Together gets disproportionately high ownership rates among twin parents — and the reason is simple: it accommodates two infant car seats simultaneously, side-by-side.

Which car seats actually fit? This is the question Chicco reviewers ask more than any other, and the answer is more specific than most listings communicate. The Cortina Together is designed to accept the Chicco KeyFit 30, KeyFit 35, Fit2, and the Chicco Bravo series car seats. It does not have universal adapter compatibility. If you’re planning to use non-Chicco infant seats, verify fitment before purchasing — the adapter brackets are brand-specific. The Bump’s Best Double Strollers for Twins and Irish Twins guide (2025) notes that twin parents who stay within the Chicco ecosystem report smooth, click-in installation; those who attempt third-party adapters report significantly more friction.

Solo manageability with the Cortina Together: At approximately 29 pounds without seats installed, it’s marginally lighter than the Ready2Grow on paper. But the side-by-side configuration — roughly 30 inches wide — creates a different set of logistical challenges. It sits at or beyond the clear width of many standard interior doorways, which typically measure 28–32 inches. Reviewers living in urban apartments with tight hallways consistently flag this. For suburban families loading directly from a garage into an SUV, it’s a non-issue. For anyone navigating older building stock, it matters.

The fold on the Cortina Together earns consistent praise in owner reviews for being genuinely one-hand operable once the seats are removed. WhatToExpect’s Double Stroller Buying Guide (2025) notes this as a differentiator in the side-by-side category, where many competing models require two hands and a moment of frustration to collapse.

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Strolee Lightweight Double: The Specialist Option

The Strolee is the most interesting stroller in this comparison — not because it’s the most versatile, but because it fills a specific gap that more capable strollers don’t. At approximately 20 pounds, it is meaningfully lighter than either the Ready2Grow or the Cortina Together. Reviewers describe using it specifically for airport travel, public transit, and situations where the heavier double would simply be left at home. The practical implication: a stroller that actually gets used beats a stroller that’s too heavy to bother with.

BabyGearLab’s Double Stroller Reviews and Ratings (2025 edition) notes that the ultralight double stroller segment is genuinely underserved, and the Strolee’s appeal in reviews comes specifically from parents who have already bought a heavier capable double and are looking for something they’ll actually take on a plane.

What the Strolee doesn’t do: It doesn’t accept infant car seats with the same click-in ease as Graco’s or Chicco’s ecosystems. Owners describe it as best suited for two children who can both sit independently — meaning somewhere in the 6-month-and-up range at minimum, and more realistically the 12-month-plus range for the younger child. If your two under two includes a genuine newborn, the Strolee is not your primary stroller for that phase.

Where it earns its keep: Reviewers who own a heavier double alongside the Strolee consistently describe the same pattern — the capable double stays in the car for neighborhood use, and the Strolee comes out for anything involving stairs, transit, or a boarding gate. The 12-pound weight advantage over the Ready2Grow accumulates across a day of folding, loading, and unloading in ways that feel significant by the third trip.

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The Cup Holder Is Not a Trivial Detail

One detail that surfaces repeatedly in double stroller reviews — and sounds like it shouldn’t matter — is the adult cup holder. Reviewers specifically note its absence, or the presence of one that fits an adult-sized beverage, as a meaningful quality-of-life marker. Parents.com’s Best Double Strollers Tested and Reviewed (2025) notes that the Baby Trend Sit N’ Stand line receives specific mention for including an adult cup holder, and that detail generates genuine appreciation in long-run reviews precisely because competing doubles often omit it or include holders too small for standard travel mugs. If you’re going to log four daily walks with two kids, small ergonomic details accumulate. The handlebar cup holder is worth checking on any double you’re seriously considering — it’s the kind of thing that seems absurd to research in advance and infuriating to discover missing afterward.

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Frequently Asked Questions

Does the Graco Ready2Grow come with an infant car seat, or do I need to buy one separately? The stroller frame ships alone. Infant car seats are sold separately. Product listing photos frequently show the stroller configured with a car seat, which is a staging decision by the photographer, not an indication of what’s in the box. Budget for the car seat and any necessary adapter brackets as separate line items.

Which of these double strollers fits in a standard sedan or compact car trunk? This is highly trunk-dependent, but the Strolee — at its compact folded dimensions and 20-pound weight — is the strongest candidate for smaller vehicles. The Graco Ready2Grow and Chicco Cortina Together are better suited to SUVs and minivans. Reviewers with compact cars consistently note the Ready2Grow’s folded length as a tight fit; the Cortina Together’s width creates similar challenges in narrower trunk openings.

Can one adult manage a double stroller through airport security alone? This is genuinely hard with any double stroller. The Strolee’s weight advantage is most meaningful here — reviewers specifically describe using it for air travel because it can be gate-checked without requiring a second adult to assist with lifting. The Ready2Grow and Cortina Together are manageable at security but not easy, particularly when children also need to be removed and corralled through the scanner.

What is the weight difference between the Strolee and the Graco Ready2Grow? Approximately 12 pounds — the Strolee at roughly 20 pounds versus the Ready2Grow at roughly 32 pounds. In isolation that sounds modest; across a day of folding, loading, and unloading, owners describe it as significant.

Do any of these double strollers fit through standard doorways? The Graco Ready2Grow’s inline configuration is the clear winner at approximately 25 inches wide — standard interior door clear widths run 28–32 inches, so the inline double has meaningful margin. The Chicco Cortina Together’s side-by-side configuration at approximately 30 inches wide is borderline and gets flagged in reviews for tight apartment hallways and older building doorframes. The Strolee’s compact fold helps for storage, but its operational width during use varies by configuration.

Can the Baby Trend Sit N’ Stand accommodate two children who both want to sit? Yes — the Sit N’ Stand’s design intent includes a dual seated configuration, with an additional standing platform for the older child who has graduated from a full seat. The rear bench can accommodate a seated child as well. Reviewers note that the transition period — when the older child sometimes wants to sit and sometimes wants to stand — is precisely where the flexibility earns its keep.

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The Decision Rule

Here’s the clean version: if you’re in the Graco ecosystem already and living somewhere with stairs, tight hallways, or frequent solo trips, the Ready2Grow’s versatility and inline width are worth the weight penalty. If you have twins or two children at the same developmental stage and you’re loading into a large vehicle from a garage, the Chicco Cortina Together’s dual-infant-seat compatibility is the reason it exists. If you already own a capable heavy double and need something you’ll actually bring on planes and transit, the Strolee fills that specific ultralight niche and nothing else in this price tier does it as cleanly.

The stroller category rewards specificity. Know your primary use case before you buy — and read the listing photos skeptically.