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Cosco Mighty Fit 65 DX Convertible Car Seat, Heather Onyx

4.4 4.4 out of 5 stars 2,753 ratings

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Onyx
Car Seat

Purchase options and add-ons

Brand Cosco
Installation Type Latch
Material Fabric
Color Onyx
Orientation Forward Facing, Rear Facing

About this item

  • cashmere
  • An extra-comfortable ride that lasts for years: Rear-facing 5-40 pounds and Forward-facing 22-65 pounds
  • Fits 3 across in the back seat of most vehicles
  • Gives parent in the front seat more leg room
  • Side Impact Protection
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$89.99
Get it as soon as Sunday, Mar 31
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From the manufacturer

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About Us


We keep the village in motion with awesome, essential gear for your kiddos designed with simplicity, affordability, and value in mind.


CoscoKids is the trusted brand for every family who sees themselves in us.

Product Description

Get the car seat that’s designed with your family’s real life in mind. The Cosco Kids™ MightyFit™ 65 DX Convertible Car Seat keeps your child safer in the car all the way from 5-65 pounds. It’ll keep your baby comfortably rear facing up to 40 pounds, and then transitions to forward-facing mode up to 65 pounds.Not too big and not too small, the MightyFit 65 DX is designed to be the right size. In rear-facing mode, it takes up less room, which gives parents more leg room in the front seats. The car seat will also fit three across the back seat of most vehicles, which is great for growing families.MightyFit 65 DX keeps kids safer with Side Impact Protection built right in, and a 5-point harness that adjusts easily from the front of the seat. The harness features 5 heights and 3 buckle locations so you can be sure you’re giving the best fit to your growing child.The MightyFit 65 DX Convertible Car Seat is mighty comfortable for kids and convenient for parents too. Kids will love the plush padding and deluxe materials that give them an extra comfy ride. You'll love that the fabric is both machine washable and dryer safe, making this seat super easy to clean when messes happen.If your chosen vehicle happens to be an airplane, this convertible car seat has got you covered. Certified for use on aircraft, it gives your child a familiar seat during the flight. Its compact design also makes it easier to manage through airport security checks.The MightyFit 65 DX is proudly made by Cosco Kids™ in Columbus, Indiana. Made by American families for American families.

Product information

Technical Details

Additional Information

Warranty & Support

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Cosco Mighty Fit 65 DX Convertible Car Seat, Heather Onyx


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Cosco Mighty Fit 65 DX Convertible Car Seat, Heather Onyx
Cosco Mighty Fit 65 DX Convertible Car Seat, Heather Onyx
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Price$89.99-10% $89.99
List:$99.99
$94.97$74.99$89.98$99.99
Delivery
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Customer Ratings
Easy to install
3.9
4.1
4.8
4.1
4.6
3.7
Comfort
3.6
4.3
3.9
4.2
3.7
Durability
4.6
4.5
4.9
Easy to clean
4.6
4.3
4.4
Leg room
4.2
4.3
4.1
Sold By
Amazon.com
Amazon.com
Amazon.com
Amazon.com
Amazon.com
Amazon.com
material
Fabric
Fabric
Plastic
Polypropylene
Polyester
Metal, Polyester, Plastic
min recommended weight
5 pounds
5 pounds
4 pounds
5 pounds
5 pounds
4 pounds
max. recommended weight
40 pounds
65 pounds
35 pounds
40 pounds
65 pounds
65 pounds
maximum height
30.5 inches
52 inches
1 centimeters
43 inches
62 inches
40 inches
rear-facing min. weight
5 pounds
5 pounds
5 pounds
5 pounds
0 pounds
max rear facing weight
40 pounds
40 pounds
40 pounds

Looking for specific info?

Customer reviews

4.4 out of 5 stars
4.4 out of 5
2,753 global ratings

Customers say

Customers like the comfort, fit, quality and value of the infant toddler car seat. For example, they mention that it's comfortable, it takes up very little space and that the straps are secure. Some appreciate the weight and appearance. That said, some complain about the adjustability and ease of installation.

AI-generated from the text of customer reviews

154 customers mention115 positive39 negative

Customers like the comfort of the infant toddler car seat. They mention that it is lightweight, yet comfortable, and fits properly. Some say that the straps are secure and comfortable, while others mention that the fabric is cool.

"...It worked perfect. Easy to install and take out. my daughter was comfortable and it leaves a good amount of room in between the next seat...." Read more

"...It was easy to install, softly padded, and the straps are secure and comfortable. The added cup holder was a bonus...." Read more

"...This carseat meets expectations for a cheap 2nd carseat. The padding feels comfortable and she looks happy sitting in it...." Read more

"...What I did not like:- The cushioning is thin, does not seem comfortable for long trips.-..." Read more

151 customers mention118 positive33 negative

Customers like the fit of the infant toddler car seat. They say that the materials are great, the size is perfect, and the safety ratings are great. It is lightweight, compact in size, and takes up very little space. Some mention that it fits well in their little car and that it's great for small cars. Overall, most are satisfied with the fit and functionality of the product.

"...my daughter was comfortable and it leaves a good amount of room in between the next seat. She slept the whole way on the plane." Read more

"I love the size and simplicity of these car seats...." Read more

"...The seats are well padded and comfy. They are compact. They are a no fuss design, simple to use. And my babies are able to sleep in them!..." Read more

"...This car seat fits perfectly!! I'd definitely buy it again for my next!!..." Read more

141 customers mention104 positive37 negative

Customers like the quality of the infant toddler car seat. They say it's amazingly built, holds up perfectly, and the materials are great. Some say the assembly was difficult and not secure enough. Overall, most are satisfied with the quality and durability of the product.

"...They last long and are easy to take apart and clean. They have served my family well." Read more

"I love the affordability, the size, and the material...." Read more

"It works, it’s comfy, but it’s not super sturdy, definitely is a pain to install, but that’s typical" Read more

"...It arrived before time. Was packaged wonderfully and the craftsman is simple but durable. The price was Amazing for a 2nd car seat. Happy customer" Read more

104 customers mention89 positive15 negative

Customers like the value of the infant toddler car seat. They say it's a great budget seat, well worth it, and cheap.

"I love the affordability, the size, and the material...." Read more

"...The added cup holder was a bonus. I'd buy it again; it's a great value." Read more

"Pros: lightweight, inexpensive, perfect for flights (FAA approved)..." Read more

"...The price was Amazing for a 2nd car seat. Happy customer" Read more

66 customers mention59 positive7 negative

Customers like the weight of the infant toddler car seat. They mention it's well padded, has a cup holder, and is lightweight. Some say it'll be good for plane travel. Overall, most are satisfied with the weight and size of the product.

"Pros: lightweight, inexpensive, perfect for flights (FAA approved)..." Read more

"...This one is very light weight and I was able to install it myself...." Read more

"Great for traveling, light weight to carry around the airport and easy to install in any car...." Read more

"It’s light for traveling an to take on plane, but it’s not very comfy." Read more

56 customers mention49 positive7 negative

Customers like the appearance of the infant toddler car seat. They say the onyx color is lovely, and it looks modern. Customers also say that it's practical and neutral-colored, and perfect for narrow cars.

"...The padding feels comfortable and she looks happy sitting in it. Sounds like this carseat is better used for forward facing...." Read more

"...Plush seat!- Machine washable cover.- Cute styling! I got the aqua blue for both my son and daughter and they love it.-..." Read more

"Looks a great but I have to tighten the straps every couple trips???" Read more

"This car seat is nice looking, very padded. Ease to install" Read more

136 customers mention88 positive48 negative

Customers are mixed about the ease of installation of the infant toddler car seat. Some mention it's easy to install in any car, and adaptable to various means of transportation. However, others say that it'll take a little time and effort to install. Some customers also mention that the instructions are horrendous, and the seat is difficult to install rear facing.

"...It worked perfect. Easy to install and take out. my daughter was comfortable and it leaves a good amount of room in between the next seat...." Read more

"...It was easy to install, softly padded, and the straps are secure and comfortable. The added cup holder was a bonus...." Read more

"...Cons: difficult to install rear facing and get it tight enough that it doesn’t wiggle (but installs easily forward facing), the straps for the..." Read more

"...But with it pulled forward the angle is perfect now. The cover is easy enough to take on and off for cleaning and I love that I can just throw the..." Read more

75 customers mention14 positive61 negative

Customers find the adjustability of the infant toddler car seat difficult to tighten or release the harness. They say the straps tighten unevenly and the harness is hard to tight. Some customers also mention that the area is short, so it's a bit tight in the thighs when buckled. They also say that it'd be tedious to re-adjust the strap.

"...n’t wiggle (but installs easily forward facing), the straps for the harness twist easily which is really annoying" Read more

"...To get a tight enough install in a motor vehicle is incredibly difficult with the latch method OR belt method...." Read more

"...for rear facing, this one does not have that and there is no good way to snug it down to the seat...." Read more

"...Once installed rear facing it is also hard to tighten or release the harness as there is no room between the strap/lever and the seat of the car...." Read more

Product arrived damaged
4 Stars
Product arrived damaged
My mother ordered one and it looked way more comfy for my baby than the one I had so I got my own. I was readjusting the straps after taking it out of the box and noticed the elastic that holds the padding down, was ripped almost in half. Looks good quality and I'm excited for my baby to try it, but I was disappointed with the way that it came. Since I purchased it brand new, I didn't expect it to show signs of wear and tear :/ to send back the whole thing and wait for a replacement isn't feasible being that my son needs to ride with me in the car and I need the car seat for day to day activities.
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Top reviews from the United States

Reviewed in the United States on February 8, 2024
Color: OnyxStyle: Car SeatVerified Purchase
10 people found this helpful
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Reviewed in the United States on February 13, 2024
Color: OnyxStyle: Car SeatVerified Purchase
Reviewed in the United States on March 4, 2024
Color: OnyxStyle: Car SeatVerified Purchase
Reviewed in the United States on December 24, 2023
Color: OnyxStyle: Car SeatVerified Purchase
One person found this helpful
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Reviewed in the United States on July 2, 2023
Color: OnyxStyle: Car SeatVerified Purchase
9 people found this helpful
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Reviewed in the United States on August 29, 2017
Color: OnyxStyle: Car SeatVerified Purchase
4 people found this helpful
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Reviewed in the United States on February 5, 2024
Color: OnyxStyle: Car SeatVerified Purchase
Reviewed in the United States on February 16, 2024
Color: OnyxStyle: Car SeatVerified Purchase

Top reviews from other countries

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Cristina
5.0 out of 5 stars Me encanto
Reviewed in Mexico on September 16, 2023
Color: OnyxStyle: Car SeatVerified Purchase
Patricia P.
5.0 out of 5 stars La mejor silla.
Reviewed in Mexico on October 26, 2021
Color: OnyxStyle: Car SeatVerified Purchase
Alma
4.0 out of 5 stars Me gustó
Reviewed in Mexico on December 13, 2018
Color: OnyxStyle: Car SeatVerified Purchase
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Alma
4.0 out of 5 stars Me gustó
Reviewed in Mexico on December 13, 2018
Me gusto el tamaño y lo facil de instalar. Y el color.
Realmente usa un espacio considerable para poder colocar mas sillas o si el auto es muy compacto.
Pero no creo que sea apta para un bebé menor de 6 meses al menos pues todavia tendria que adaptar unas sabanitas enrrolladas a los costados de mi bebé para que no quede muy flojo en el asiento.
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4 people found this helpful
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Gaby
5.0 out of 5 stars Buen tamaño y peso
Reviewed in Mexico on April 19, 2020
Color: OnyxStyle: Car SeatVerified Purchase
Dulce
5.0 out of 5 stars Cómprenlo
Reviewed in Mexico on August 28, 2020
Color: OnyxStyle: Car SeatVerified Purchase