

Cosco Kids MightyFit 65 DX Infant & Toddler Convertible Car Seat, Heather Onyx
Key item features
- 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
- 5-point harness with easy up-front adjustment
- Age Group: Infant & Toddler
Specs
- Child car seat styleConvertible Car Seats
- Forward-facing maximum weight65 lb
- Minimum weight5 lb
- Safety harness style5-Point Harness
- Car seat facing directionConvertible
- Maximum height49 in
Reviews summary
- : Features extra support for a smooth experience.
- : Offers great value at this cost.
- : Provides comfortable support for baby.
- : Has a design that allows for removal.
- : Can provide reliable protection, but may have vulnerabilities in certain situations.
- : Buckle strap's limited length causes fitting issues.
- Free shipping
Free 90-day returns
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About this item
Product details
Get the car seat that’s designed with your family’s real life in mind. The Cosco 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 in Columbus, Indiana. Made by American families for American families.
For more than 70 years, Cosco® has been a leading children’s products brand recognized for its dedication to safety and value. From bouncers to car seats, swings to strollers and high chairs to play yards, Cosco's essential baby products feature solid value and smart design.
- 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
- 5-point harness with easy up-front adjustment
- Age Group: Infant & Toddler
Specifications
Child car seat style
Forward-facing maximum weight
Minimum weight
Safety harness style
Directions
Fabric Care Instructions
Warranty
Warranty information
Warranty url
Ingredients
Ingredients
All New Material Consisting of: Seat: Polyurethane Foam Pad (75%), Polyester Fiber Batting (25%), Head Rest: Polyurethane Foam Pad (65%), Polyester Fiber Batting (35%).
Warnings
Warning Text
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| Product | Viewing this itemCosco Kids MightyFit 65 DX Infant & Toddler Convertible Car Seat, Heather Onyx ![]() $89.99 current price $89.991043.9 out of 5 Stars. 104 reviews | Cosco Kids Scenera Extend Infant & Toddler Convertible Car Seat, Moonlit Night, Black ![]() $59.00 current price $59.0023324.3 out of 5 Stars. 2332 reviews | Cosco Kids™ Easy Elite Slim All-in-One Convertible Car Seat, Grey Glyphs, Infant & Toddler, Unisex ![]() $99.00 current price $99.0010794.1 out of 5 Stars. 1079 reviews | Cosco Kids Entrada Infant and Toddler Convertible Car Seat, Shady Day, Grey ![]() $89.48 current price $89.486404.4 out of 5 Stars. 640 reviews | Safety 1st Comfort Ride™ 3-in-1 Booster Car Seat, Seal Pup II ![]() $68.59 current price $68.595234.3 out of 5 Stars. 523 reviews | Chicco GoFit Backless Booster Car Seat - Raindrop (Blue), New ![]() $54.99 current price $54.994064.7 out of 5 Stars. 406 reviews | Evenflo Chase Plus 2-in-1 Harnessed Booster Car Seat ![]() $49.47 current price $49.47120784.5 out of 5 Stars. 12078 reviews | Evenflo® Tribute™ LX Convertible Car Seat, Venus ![]() $79.99 current price $79.994354.2 out of 5 Stars. 435 reviews |
|---|
| Age Group | ToddlerCosco Kids MightyFit 65 DX Infant & Toddler Convertible Car Seat, Heather Onyx | ToddlerCosco Kids Scenera Extend Infant & Toddler Convertible Car Seat, Moonlit Night, Black | ToddlerCosco Kids™ Easy Elite Slim All-in-One Convertible Car Seat, Grey Glyphs, Infant & Toddler, Unisex | ToddlerCosco Kids Entrada Infant and Toddler Convertible Car Seat, Shady Day, Grey | ChildSafety 1st Comfort Ride™ 3-in-1 Booster Car Seat, Seal Pup II | ChildChicco GoFit Backless Booster Car Seat - Raindrop (Blue), New | ChildEvenflo Chase Plus 2-in-1 Harnessed Booster Car Seat | ChildEvenflo® Tribute™ LX Convertible Car Seat, Venus |
|---|---|---|---|---|---|---|---|---|
| Child Car Seat Style | Convertible Car SeatsCosco Kids MightyFit 65 DX Infant & Toddler Convertible Car Seat, Heather Onyx | Convertible Car SeatsCosco Kids Scenera Extend Infant & Toddler Convertible Car Seat, Moonlit Night, Black | Convertible Car SeatsCosco Kids™ Easy Elite Slim All-in-One Convertible Car Seat, Grey Glyphs, Infant & Toddler, Unisex | Convertible Car SeatsCosco Kids Entrada Infant and Toddler Convertible Car Seat, Shady Day, Grey | High-Back Booster Car SeatsSafety 1st Comfort Ride™ 3-in-1 Booster Car Seat, Seal Pup II | Backless Booster Car SeatsChicco GoFit Backless Booster Car Seat - Raindrop (Blue), New | High-Back Booster Car SeatsEvenflo Chase Plus 2-in-1 Harnessed Booster Car Seat | Convertible Car SeatsEvenflo® Tribute™ LX Convertible Car Seat, Venus |
| Color | Heather OnyxCosco Kids MightyFit 65 DX Infant & Toddler Convertible Car Seat, Heather Onyx | Moonlit NightCosco Kids Scenera Extend Infant & Toddler Convertible Car Seat, Moonlit Night, Black | Grey GlyphsCosco Kids™ Easy Elite Slim All-in-One Convertible Car Seat, Grey Glyphs, Infant & Toddler, Unisex | Shady DayCosco Kids Entrada Infant and Toddler Convertible Car Seat, Shady Day, Grey | Seal Pup IISafety 1st Comfort Ride™ 3-in-1 Booster Car Seat, Seal Pup II | RaindropChicco GoFit Backless Booster Car Seat - Raindrop (Blue), New | Huron BlackEvenflo Chase Plus 2-in-1 Harnessed Booster Car Seat | PinkEvenflo® Tribute™ LX Convertible Car Seat, Venus |
| Car Seat Facing Direction | ConvertibleCosco Kids MightyFit 65 DX Infant & Toddler Convertible Car Seat, Heather Onyx | ConvertibleCosco Kids Scenera Extend Infant & Toddler Convertible Car Seat, Moonlit Night, Black | ConvertibleCosco Kids™ Easy Elite Slim All-in-One Convertible Car Seat, Grey Glyphs, Infant & Toddler, Unisex | ConvertibleCosco Kids Entrada Infant and Toddler Convertible Car Seat, Shady Day, Grey | Forward FacingSafety 1st Comfort Ride™ 3-in-1 Booster Car Seat, Seal Pup II | Forward FacingChicco GoFit Backless Booster Car Seat - Raindrop (Blue), New | Forward FacingEvenflo Chase Plus 2-in-1 Harnessed Booster Car Seat | ConvertibleEvenflo® Tribute™ LX Convertible Car Seat, Venus |
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Customer ratings & reviews
Reviews summary
- : Features extra support for a smooth experience.
- : Offers great value at this cost.
- : Provides comfortable support for baby.
- : Has a design that allows for removal.
- : Can provide reliable protection, but may have vulnerabilities in certain situations.
- : Buckle strap's limited length causes fitting issues.
Customer images
Showing 1-3 of 54 reviews
Verified Purchase
Great for travel or second car
So impressed with this car seat. I would recommend over the Cosco NEXT that everyone recommends for travel as this one will work for longer. It is fairly compact, lightweight, and easy to install. I recommend using latch to install- the key to getting it tight is to get in the car and stand behind the seat, pushing the seat into place with your waist as you pull the slack out of the latch strap. When you tighten the latch strap, pull the strap from within the car seat belt path ( google “inside out”trick for car seats)
Verified Purchase
Reliable Seat
This is very reliable car seat for your little one. Pretty simple installation. Just need to make sure you keep the straps in order when installing the seat.
Don't believe the negative reviews...
We have Maxi-Cosi car seats as our primary car seats in the mini van. These were purchased solely for my husband to do pickup and drop off at day care. I went with these because they allow for the most room up front and they are fairly compact when rear facing. I read through all the reviews and we have had zero of these issues that others have had to install not one, but two of these in the car for our one year old twins. We plan on keeping our children rear facing until they are thirty pounds and currently they are barely twenty pounds each. I recommend everyone to read through the booklet that comes with the car seat and familiarize themselves with installation as it might differ from other models or brands.
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