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Mockingbird 3.0 2nd Add-On Seat Kit - 2 of 4Mockingbird 3.0 2nd Add-On Seat Kit - 3 of 4Mockingbird 3.0 2nd Add-On Seat Kit - 4 of 4
Mockingbird 3.0 2nd Add-On Seat Kit - 1 of 4

Mockingbird 2nd Add-On Seat Kit 3.0 - Stone Blue

$175.00

ColorStone Blue

In Stock

Eligible for registries and wish lists

About this item

Highlights

  • CONVERT FROM SINGLE TO DOUBLE: Pair with your Mockingbird Single-to-Double Stroller to expand from one to two seats. The 2nd Seat Kit 3.0 includes upper and lower adapters (to create two-seat capacity), and a second stroller seat.
  • FULL-CAPACITY 2ND SEAT: Unlike many other convertible double strollers, the seat in the 2nd Seat Kit is the same size as the seat that came with your Single-to-Double Stroller, so you can ride with two kids up to 45 lb and get more years of use out of your stroller.
  • MAXIMUM FLEXIBILITY: Reversible, reclinable seats and 44 seating configurations allow you to mix and match attachments—no tools required.
  • HEAD-TO-TOE SUN PROTECTION: Patent-pending FullShade™ system with extendable UPF 50+ canopy and new LegShade™
  • ADJUSTABLE COMFORT: Reversible seat with 5-position recline, height-adjustable canopy, and reversible seasonal seat liner
  • INFANT-COMPATIBLE: To expand to double mode with an infant, use the included upper and lower adapters with one of our infant-accessories (sold separately): a cozy lie-flat Bassinet, space-saving Infant Seat Insert, or Car Seat Adapter that is compatible with more than 40 of the most popular infant car seats.

Description

The Mockingbird 2nd Seat Kit allows you to convert your Single-to-Double Stroller to double mode. It comes with a 2nd stroller seat, as well as a set of adapters to make room for two riders.
Unlike many convertible strollers’ add-on seats, the seat in Mockingbird’s 2nd Seat Kit is identical to the seat included with the Single-to-Double Stroller. This means you can stroll in double mode with two kids up to 45 lbs, and you can choose to have your younger child closer to you.
It also means that the 2nd seat has all the features of the Stroller seat, including Mockingbird’s FullShade™ system, which pairs their XL canopy with the new built-in LegShade™ for head-to-toe UPF 50+ sun coverage. Other parent-favorite features include the magnetic buckle, height-adjustable canopy, reversible seasonal seat-liner, reflective piping for safer nighttime strolls, and in-seat storage.
You can see all possible configurations at hellomockingbird.com/setups.
If you’re planning to stroll with one of your kids using the Bassinet or Car Seat Adapter, you’ll still need the 2nd Seat Kit adapters to convert to double mode, and then you can start using the 2nd stroller seat when your child develops head and neck control (typically around 4-6 months).
To stroll with twin infants, you’ll need the 2nd Seat Kit plus two Car Seat Adapters or two Infant Seat Inserts. The Single-to-Double Stroller is not compatible with two Bassinets.
Dimensions (Overall): 35 Inches (H) x 15 Inches (W) x 9 Inches (D)
Weight: 12 Pounds
Suggested Age: 0-4 Years
Industry or Government Certifications: Meets ASTM Standards, Baby Safety Alliance Verified
Compatible With: Mockingbird Strollers
Material: Anodized Aluminum, Plastic, Nylon
Care & Cleaning: Spot or Wipe Clean
Warranty: 2 Year Limited Warranty. To obtain a copy of the manufacturer's or supplier's warranty for this item prior to purchasing the item, please call Target Guest Services at 1-800-591-3869
TCIN: 95018339
UPC: 080213172404
Item Number (DPCI): 030-09-6031
Origin: Imported
If the item details aren’t accurate or complete, we want to know about it.

Shipping details

Estimated ship dimensions: 6.1 inches length x 18.9 inches width x 37 inches height
Estimated ship weight: 13.93 pounds
This item ships in its manufacturer’s packaging, revealing what’s inside. ·

Return details

This item can be returned to any Target store or Target.com.
This item must be returned within 90 days of the date it was purchased in store, delivered to the guest, delivered by a Shipt shopper, or picked up by the guest.
See the return policy for complete information.

Q: Does this come with a rain cover?

submitted by corky - 23 days ago
  • A: Hi corky! The 2nd Seat Kit does not come with a Rain Cover (you can find that separately on our website).

    submitted byMockingbird Team - 22 days ago
    Brand expert

Q: Does the second seat on the 3.0 have the option to move the shade up for taller kids?

submitted by Ps - 30 days ago
  • A: Hi Ps! Yes, our Canopies on the 3.0 Stroller and 3.0 2nd Seat Kit have an adjustable Canopy that extends upwards to accommodate taller kiddos!

    submitted byMockingbird Team - 29 days ago
    Brand expert

Q: How should the seat be cleaned and maintained?

submitted by AI Shopping Assistant - 2 months ago
  • A: Cleaning can be done by spot or wipe cleaning, keeping it hygienic and well-maintained.

    submitted byAI Shopping Assistant - 2 months ago
    Ai generated

Q: What safety standards does the seat comply with?

submitted by AI Shopping Assistant - 2 months ago
  • A: The seat meets ASTM standards and is verified by the Baby Safety Alliance for safety.

    submitted byAI Shopping Assistant - 2 months ago
    Ai generated

Q: What materials are used in the construction of the seat?

submitted by AI Shopping Assistant - 2 months ago
  • A: The seat is made from anodized aluminum, plastic, and nylon for durability and safety.

    submitted byAI Shopping Assistant - 2 months ago
    Ai generated

Q: What age range is the Add-On Seat Kit suitable for?

submitted by AI Shopping Assistant - 2 months ago
  • A: It is suitable for children aged 0 to 4 years old.

    submitted byAI Shopping Assistant - 2 months ago
    Ai generated

Q: What is the weight of the Add-On Seat Kit?

submitted by AI Shopping Assistant - 2 months ago
  • A: The Add-On Seat Kit weighs 12 pounds, making it lightweight and easy to handle.

    submitted byAI Shopping Assistant - 2 months ago
    Ai generated

Q: Is the Mockingbird 3.0 second seat kit compatible with the 2.0 single to double stroller?

submitted by abcd - 2 months ago
  • A: Yes, the 2nd Seat Kit 3.0 works on all Single-to-Double Strollers, no matter if it's the 2.0 or earlier!

    submitted byMockingbird Team - 2 months ago
    Brand expert

Additional product information and recommendations

Frequently bought together

Guests are saying

The Mockingbird stroller has received praise for its versatility and ease of use, especially with the addition of the second seat. Guests appreciate the smooth ride and adaptability for different configurations, making it suitable for families with multiple children. However, some guests have expressed concerns about maneuverability and weight when using the double setup. Overall, it remains a popular choice for those seeking a functional and stylish stroller for their growing family.
    Summary created by AI from text of reviews reflecting recent feedback provided across different star ratings (includes incentivized reviews)
    4.5 out of 5 stars with 651 reviews
    4 out of 5 stars
    26 May, 2026
    originally posted on hellomockingbird.com
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    New seat

    I love the seat itself but the newer buckle system is hard to buckle on a child who doesn’t want to be buckled haha
    ASHTONA
    Did you find this review helpful?
    3 out of 5 stars
    4 May, 2026
    originally posted on hellomockingbird.com
    Image

    Smaller than expected

    My toddler loves this seat - wish it would recline more with the infant seat attached. Also not sure how he will continue to fit in it much longer? he is 20 months but is close to maxing out the buckle with a thick coat on.
    KimberlyZ
    Did you find this review helpful?
    5 out of 5 stars
    3 May, 2026
    originally posted on hellomockingbird.com
    Image

    Double the fun

    I purchased the Mockingbird 2nd seat kit as a baby shower gift requested by the mothert-to-be. She is so pleased with her Mockingbird stroller that she received for her firstborn, that she wanted to continue using it after her second baby. She was thrilled to know that I purchased it, as she is so happy with the quality, look and functionality of the stroller.
    KathleenK
    Did you find this review helpful?
    2 out of 5 stars
    3 May, 2026
    originally posted on hellomockingbird.com
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    Disappointing

    This stroller is heavy to begin with. Add the 2nd seat kit and it is absolutely unmanageable. You need hulk strength to get this thing in and out of the car. The fact that it doesn’t also come with adapters after you’ve paid for the stroller and then the second seat kit is ridiculous. It doesn’t steer easily once the second seat is added and the handle is way too close to the bucket if you’re using that on top. You barely have room for your fingers to clear it. The only thing I like about this stroller is it’s one of the few double strollers that has a huge storage basket underneath. As a single this stroller is really nice. As a double I don’t like it at all.
    AmandaG
    Did you find this review helpful?
    5 out of 5 stars
    29 April, 2026
    originally posted on hellomockingbird.com
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    Best investment

    I bought the second seat for when my niece visited and it’s the best investment/decision made. So easy to put together and might be a bit bulky to collapse but so worth it and not dealing with two strollers.
    VivianaB
    Did you find this review helpful?
    5 out of 5 stars
    24 April, 2026
    originally posted on hellomockingbird.com
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    2nd seat

    We just took the two seater to Disney and it’s not something I want to do again. It was very frustrating to have to take the seat apart every single flight and ride we took to and from the park. Also the both canopies didn’t hold up.
    McKenzieB
    Did you find this review helpful?
    5 out of 5 stars
    22 April, 2026
    originally posted on hellomockingbird.com
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    wish i could just buy attachment

    Good! I wish there was an option to buy the attachments without the second seat
    AubreyV
    1 guest found this review helpful. Did you?
    5 out of 5 stars
    22 April, 2026
    originally posted on hellomockingbird.com
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    Love the new seat

    I love the extended canopy and how easy it is to adjust the straps!
    TaylorS
    Did you find this review helpful?
    5 out of 5 stars
    22 April, 2026
    originally posted on hellomockingbird.com
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    We love our mockingbird!

    We had our second baby and ordered the additional seat and are so pleased! It is so easy to use and aesthetically pleasing. We love mockingbird products in our home. I highly recommend!
    DevonB
    Did you find this review helpful?
    5 out of 5 stars
    18 April, 2026
    originally posted on hellomockingbird.com
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    Simple and Easy 2nd seat addition

    Very happy with the conversion kit and how easy it was to assemble to convert my single mockingbird to double!
    DeannaS
    Did you find this review helpful?
    1 out of 5 stars
    18 April, 2026
    originally posted on hellomockingbird.com
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    STOP CONTACTING ME!

    STOP CONTACTING ME! I PURCHASED THE STROLLER AS A GIFT!
    ElaineA
    Did you find this review helpful?
    5 out of 5 stars
    18 April, 2026
    originally posted on hellomockingbird.com
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    So grateful for this stroller!!

    I already loved this stroller so much but this 2nd seat kit, and how easy it is, has made our transition to two kiddos a little bit easier! Our older one loves that he can face the baby and “keep an eye on him” 🥰. Excellent purchase, we are so happy!!
    SydneyY
    Did you find this review helpful?
    5 out of 5 stars
    18 April, 2026
    originally posted on hellomockingbird.com
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    The Lifesaver

    I love my Mockingbird stroller and now that my family is growing, I love that our stroller grows with us. The lightweight frame makes it so easy to maneuver around parks, grocery store isles, or the crowded farmers market. I will always recommend this stroller.
    MirandaP
    Did you find this review helpful?
    5 out of 5 stars
    16 April, 2026
    originally posted on hellomockingbird.com
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    It’s great!

    Easy to put together which is so nice when you’ve just had a baby and don’t want to do hard things. The stroller still pushes very smoothly and everyone is comfortable!
    AnnaP
    Did you find this review helpful?
    4 out of 5 stars
    16 April, 2026
    originally posted on hellomockingbird.com
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    Good overall

    With the second edition added to our family, the 2nd Seat Kit was a must. It has been rather helpful to have 2 seats available for my kiddos. However, I do have some inconveniences with the overall functionality of the stroller with 2 seats. 1. When it is in 2 chair mode, it is almost impossible to fold it up with both seats and store it in a vehicle. I have been removing the seats each time we put it in my SUV that has plenty of space. 2. There is not as much range in the individual seats in how far back or forward they can lean in this position. I’ve found the best configuration for this is the top seat facing the stroller pusher and the bottom seat facing out/forward, but is still challenging at times. 4. Maneuverability of the stroller itself decreases significantly with both seats, but that’s to be expected. 5. When the 2 seats are on the stroller, access to the large undercarriage carrier is almost impossible at times as well. The front seat completely blocks any access and the metal support bar towards the back makes it difficult to out a back pack or anything larger in there. Lastly, 6. While the 2 seat kit is compatible with the car seat adapter, it is NOT convenient or even possible at times to have it in this configuration. With my first kid, I used the stroller mainly with the car seat adapter so I could go from car to stroller quickly and easily and loved its capability that way. However, with a lower seat, it makes the car seat adapter only really work if the lower seat is in a completely upright position, which can be very uncomfortable for my toddler. This has forced me to use both of the Mockingbird seats, causing much inconvenience as I have to take my newborn out of her car seat each time I want to utilize the 2-kid stroller. Like I said, overall it’s a great stroller and I have loved it, there are just some features with the 2 seats that decreases it efficiency and functionality.
    CorinneB
    Did you find this review helpful?
    5 out of 5 stars
    16 April, 2026
    originally posted on hellomockingbird.com
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    Twin mom

    Love this stroller! Perfect for walks as the weather is getting better. Fits both babies perfect. Just the right length and width to make it through stores easily
    RaylynG
    Did you find this review helpful?
    5 out of 5 stars
    16 April, 2026
    originally posted on hellomockingbird.com
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    2nd Seat Kit 2.0

    I was very disappointed with this product. The base stroller I had previously purchased wasn’t made to accommodate this 2nd seat. Doesn’t fit! Doesn’t appear I can return this seat or purchase a base stroller to make this work.
    RebeccaW
    Did you find this review helpful?
    5 out of 5 stars
    15 April, 2026
    originally posted on hellomockingbird.com
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    Great Addition

    Easy to order, easy installation, easily meeting the needs of our family. Love the extra long sunshade and all the other features!
    HopeF
    Did you find this review helpful?
    5 out of 5 stars
    14 April, 2026
    originally posted on hellomockingbird.com
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    Great

    Just what we needed now that we have kid #2. It was pretty easy to set up for using the car seat for baby (we already had the adapter) and the seat for the big kid. It definitely makes the stroller heavier to push and more challenging to maneuver, which is hard in early postpartum days, but we’re getting used to it. Love having both kids in one stroller that is not double wide.
    ElleryJ
    Did you find this review helpful?
    2 out of 5 stars
    14 April, 2026
    originally posted on hellomockingbird.com
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    Not practical

    We LOVE the mockingbird stroller with one seat, the second we added a 2nd seat it became nearly unusable. You cannot turn or maneuver it easily. My 3 year old is about 37 pounds, if he’s in the front I can’t push it. But I can’t put my newborn in the front. Maybe it would work better when my newborn is older and I can put him in the front, and my older child in the back, but honestly we had to purchase another stroller (still tandem) that worked 100x better. I don’t know what the critical flaw is with the 2nd seat but it’s truly unfortunate.
    NicoleE
    Did you find this review helpful?

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