Diono Rainier Car Seat Review

This post contains affiliate links.


Diono has built a successful company by putting the safety of our children first. The build products that are innovative, stylish, and safe for children’s travel. Diono is constantly moving forward and looking for the next best thing. With many seals of approval, Diono is a company that parents can trust and rely on to deliver the very best among competitors.

2015-04-04 16.23.29


The Diono Rainier is a convertible booster and car seat. The beautiful blue & gray color is perfect for boys or girls. The design is thin and modern, giving you a comfortable fit in the back seat. Most car seats are bulky and uncomfortable to deal with. The Rainier’s space saving design makes it extremely comfortable for passengers and for your child. There is even an adjustable cup holder, which every car seat NEEDS! Also, the cover is machine washable. Enough about the design, let’s talk safety features.

Diono Rainier Car Seat


The Diono Rainier has won the Parent Tested, Parent Approved Award for being one of the safest car seats on the market. It’s full steel frame and aluminum reinforced sides are just one the features that set the Rainier apart from other car seats. The sidewalls of the car seat are lined with a very soft foam, which will give your child the maximum amount of protection if anything were to happen.The harness is also lined with the cushiony foam, so it protect your child’s chest during a quick stop. The seat also has leg support and sits low in the vehicle for maximum protection if there were a crash. The seat is rear facing for children 5-50 lbs and forward facing for 20-90 lbs. Then, it converts to a booster seat for up to 120 lbs, so you will never have to purchase a booster seat! It is NCAP crash tested and FAA certified.


When looking for a new car seat, your child’s comfort is just as important as their safety. Car seats travel with you every where. If you are going on a long trip or just going to the store, you want your children to be relaxed and comfortable. Traveling with kids can be overwhelming as it is. You don’t want their comfort to agitate them. The energy absorbing foam makes this seat incredibly comfy for the kids. There is multiple harness and buckle position to make sure your child is safe and comfortable.

2015-04-04 16.03.34

Installation & More

The installation is a breeze with the superLATCH system! The rubber bottom is really nice because it will not slip as you are installing. The Diono Rainier is guaranteed to last 12 years from the purchase date. The seat also includes extra harness pads for when the child is over 65 lbs.

Screen Shot 2015-04-04 at 4.15.17 PM

I love the Rainier car seat! It’s perfect for a growing child! It’s a seat that will last for years (as guaranteed) and since it converts into a booster seat then you will not need a new one any time soon. I am giving mine to my cousin. It’s perfect for her because she can use it for her young children and when they grow out of it, she plans to pass it down to her sister who just has a beautiful baby girl. The modern design, style, safety, and comfort makes the Diono Rainier Convertible Booster Car Seat a travel must have!

Click here to find out where to purchase

Connect With Diono: Facebook / Twitter


As Featured In... 2015 Spring & Summer Wedding Gift Guide #TwoBlogsFunGuides

DISCLOSURE: The opinions expressed here are that of Women and Their Pretties only. While the products in this post were given complimentary (with an exception for Amazon roundups) for promotional purposes, that does not alter my opinion of the product(s) mentioned. This post may contain sponsored links and affiliate links (which will be stated at the beginning of the post). Read Full Disclosure Here


  1. We recently got a Diono Rainier and I love it! I actually plan to get a second on for my younger child. What a great review, I even learned a few things I did not know. I see why it has won awards, great company and seat! Thanks for sharing!

  2. This really looks amazing and super comfortable. I don’t have any children and would not know the first thing about car seats, but I did try to use one once. It was a nightmare, this one does not look as complicated. I love how it converts into a booster seat. Great posting, sharing with my Sister!

  3. Oh, I wish this would have been around when my kids were little. I’m going to share this with my friend, she’s having a baby this summer. She’ll love it! Thanks for sharing.

  4. I had honestly never heard of Diono Rainier car seats before, but I’m really impressed at the quality of the car seats. It look super easy to use which is a big plus for car seats. They need to add a girly color though!

  5. This car seat looks amazing. Especially that it holds such a bigger kid…If only my youngest wasn’t outgrowing his seat soon I’d def. purchase one of these, looks so comfortable for road trips

  6. I enjoyed reading your review. I do not have any kids right now, but this car seat is definitely something I would look into when I do. I like the style, the cupholder, the safety, the comfort, and the ease of it all. It sounds great. Thank you for sharing. 🙂

  7. I was wondering if this seat has built-in cup holders? My seats don’t have their own cup holders close enough for the kids to reach. I love the way the seat look and how comfy it appears to be.

  8. Thank you for giving such a detailed review. A car seat is such an important investment! I love that it fits a range of ages and sizes of children so it will last!

  9. I hear these are great for small vehicles! THanks for the review! definitely going to keep this in mind when my sons get a little bit older!

  10. I have this same car seat in purple for my 1.5 year old and I adore it! I love that it will grow with her and I never have to buy another car seat again. Plus, it’s super safe and she can rear face for much longer. It rocks!

  11. This is such a great product! I don’t have any kids but I have a lot of friends who just had babies that would defiantly love this! I will be sharing this post with them. Great review!!

Comments are closed.