The Cosco Mighty Fit 65 DX is the successor of the Cosco Mighty Fit 65.

The Cosco Mighty Fit 65 (without the “DX”) comes in many names – the Safety 1st Guide 65, the Eddie Bauer XRS 65, and the Safety 1st SportFit 65, so please don’t be confused, LOL.

The Cosco Mighty Fit 65 DX is a budget-friendly two-way car seat. It is not that easy to tighten the straps in the rear-facing mode. You’ll also need to get a separate approved shoulder harness pad, so your child’s neck doesn’t get irritated from the straps. These are just a few of its shortcomings.

Read on why, despite these, it’s not a useless seat.


(* = affiliate link / image source: Amazon partner program)

Cosco Mighty Fit 65 DX


Ideal Use


Rear-Facing Weight: 5 to 40 pounds
Rear-Facing Height Limit: 19 to 40 inches
Forward-Facing Weight: 22 to 65 pounds
Forward-Facing Height Limit: 28 to 49 inches


Good All-In-One Car Seats


Will It Fit In My Car?


Width 18.5 inches
Height 20.5 inches (rear-facing)

25 inches (forward-facing)

Depth/Length 27.34 inches (rear-facing)

20.25 inches (forward-facing)

It’s neither too small nor too big. But just by looking at the pictures, the “3-in-a-row” install is not possible with the cupholders installed. You either need a bigger car for you to do that or you’ll have to remove the cup holder to perform a three-in-a-row installation.


Good 2-Way Car Seats

Product name Price
(* = affiliate link / image source: Amazon partner program)




Do I need to use a pool noodle/rolled towel? Yes
Easy To Install Rear-Facing? No
Easy To Install Forward-Facing? Yes
Easy To Uninstall? Yes

If installed in the rear-facing mode, the seat can still offer parents or passengers in the front seat with adequate leg room.


How To Install The Cosco Mighty Fit 65 DX Rear-Facing With LATCH



How To Install The Cosco Mighty Fit 65 DX Rear-Facing With Seat Belt


Installation is said to be more comfortable when you do this – press the car seat into the vehicle seat back with your full weight while you tightly pull out the LATCH or seatbelt.


How To Install The Cosco Mighty Fit 65 DX Forward-Facing With LATCH



How To Install The Cosco Mighty Fit 65 DX Forward-Facing With Seat Belt


The manual mentions using a pool noodle to help get the proper tightness. But this video can help with a “noodle-less” install.


A common mistake made by those who find the security of this seat questionable is shaking it from all sides. The appropriate way is to check the side-by-side movement is by grabbing the belt path using a single, less-dominant hand.

The belt path can be viewed well if the seat pad is removed first. Also, seat protectors may jeopardize installation so they are not recommended for use with this seat.

Several parents claim that this seat should only be marketed for forward facing installation because they could not get a secure fit when they install this in rear-facing mode.

Nonetheless, there are still many parents who highly recommend this seat because they find it easy to install in both orientations. Ultimately, it would boil down to whether or not the parent has previous experience or particular knack for installing car seats.


Cosco Mighty Fit 65 DX Convertible Car Seat (Heather Onyx Gray)
Price: $89.99
(As of: 2024/04/13 3:53 am - Details
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on at the time of purchase will apply to the purchase of this product.
2 new from $89.990 used
(* = affiliate link / image source: Amazon partner program)




Country Of Origin: USA
Steel Frame: No
Five-Point Harness? Yes
Side Impact Tested: Yes
Approved For Airplane Use: Yes
Easy To Buckle And Unbuckle? Yes

It is equipped with safety features that other BASIC seats offer.

It has a 5-point harness that can be adjusted with ease from the front.

This convertible car seat is likewise certified for use in any aircraft. Since it is very compact, you can efficiently manage through security checks in airports.


Check Out The Colors


The Seat


Is The Material Breathable? Yes
Seat Weight: 12 pounds
Machine Washable Cover? Yes
Roomy? Yes
No-Rethread Harness? No
Comes With An Infant Body Support? No
Easy To Remove Cover? Yes
Expiration 6 to 10 years
Comes With A Cup Holder? Yes
Shoulder Harness Has Pads? No
Leg Straps Has Pads? No

Cosco Mighty Fit 65 DX is lightweight compared to its competitors mainly because it does not have a steel frame.

Any item that a child uses may get dirty so it is great that this product has seat padding that can be removed and machine washed. The cover can be easily removed and placed back with the elastic straps. Keep in mind that the car seat should not be used while the seat padding is out for washing or drying.

Make sure to follow washing and drying instructions so as not to see some faded areas in the seat cover, as reported by some.

Color fading in fabrics may be caused by bleach and high water temperature, so never use them when you wash the seat cover. Also, tumble it dry in low heat.

The harness straps may be cleaned with damp cloth and warm water with soap.


Check Out The Latest Price




If I have to decide to put down money for this car seat, I will reconsider some issues. The need to find a specific trick in installing the product in the rear-facing mode is my most important concern. If the seat is that tricky to install, perhaps it won’t be safe unless I achieve a secure rear-facing installation.

Best not to move it from one car to another. Once installed in one vehicle, let it stay there unless necessary, such as when it is time to change into the forward-facing mode.

It is relatively low-priced, so it might be better to buy another one if you need it for another vehicle.

It can be an alternative car seat to use (e.g., plane rides) instead of lugging around your existing, heavier and more expensive car seat.

You can also give it as a gift but please only do so if the child who will use it is ready for the forward-facing mode. You don’t want the parent to be cursing your gift while they install it in a rear-facing way, LOL.

As they say, we only get what we pay for. It would be wrong to have high expectations out of something that you can buy at an average price.

I highly suggest that you check our the feedbacks of parents who got this seat, to further confirm your decision.

Check Out The Cosco Mighty Fit 65 DX Reviews


What do you think?

I’d love to know your thoughts in the comments section below!





The Cosco Mighty Fit 65 DX

[do_widget id=nav_menu-30]
I'd love to know your thoughts in the comments section below!

Your email address will not be published. Required fields are marked

{"email":"Email address invalid","url":"Website address invalid","required":"Required field missing"}
You May Also Like:
error: Content is protected !!