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ITEM# 30370

Diono Rainier All-In-One Convertible Car Seat - White Houndstooth

Share Diono Rainier All-In-One Convertible Car Seat - White Houndstooth

$315.00Save 21%
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The Diono Rainier is the ultimate in car seat safety with new extra deep side walls providing enhanced side impact protection taking Diono car seats to a whole new level.

With its extended rear-facing capabilities, it can comfortably seat rear-facing children from 5 to 50 lbs. and forward-facing children from 20 to 90 lbs. in 5-point harness mode (up to 57" in height). Additionally it converts to a booster for children between 50 and 120 lbs. or up to 57" in height.

The aluminum reinforce headrest has 12 height positions for adjustable head support and additional EPS foam surrounds the child’s head and body for complete side impact protection.

Its unique SuperLATCH™ system makes installation easy and the Rainier is NCAP crash tested, the industry benchmark for verifying child seat performance in severe accident conditions.

Key Features

  • Full steel frame and aluminum reinforced sides for unmatched safety
  • Reinforced extra deep sidewalls lined with energy-absorbing foam give Rainier superior head and body protection
  • Comfortably seats rear-facing children from 5 to 50 lbs
  • Highest forward-facing capacity of any car seat in a 5-point harness: from 20-90 lbs (up to 57" in height)
  • Converts to booster mode for children between 50 and 120 lbs. (up to 57" in height)
  • Unique SuperLATCH system that makes installation easy
  • Space saving design allows extra room for passengers while providing spacious interior for child
  • Folds flat for travel and is FAA certified
  • NCAP crash tested, the industry benchmark for verifying child seat performance in severe accident conditions
Additional Features
  • Infant body support cushions and memory foam for added comfort
  • Energy absorbing EPS foam and side impact protection provides added safety
  • Extra-long leg support for comfy road trips and multiple harness and buckle positions for custom fit
  • Safestop® energy-absorbing harness
  • Additional forward-facing recline position to accommodate different types of contoured vehicle seats, 12-position adjustable headrest, 5 shoulder and 3 buckle positions deliver a comfortable ride.
  • Rear-facing tether capability
  • Only brand of car seats with SuperLATCH™: with the Strongest Connectors and Secureweave™ webbing it provides an easy and secure installation
  • Additional set of harness pads included to use only when the child is over 65 lbs in the 5-point harness
  • Expandable sides and long seat bottom allow proper leg support
  • Sits low on vehicle seat for easy child boarding and improved safety performance in a crash
  • Angled cup holder keeps a variety of drinks upright and within easy reach
  • Cover is machine washable and dryable
  • Rubber bottom grips for no-slip installation
  • Industry leading 12 year product life (from date of purchase)

out of 5.0
305 Reviews
Ratings Snapshot
5 Star
73% (223)
4 Star
18% (56)
3 Star
5% (14)
2 Star
1% (3)
1 Star
3% (9)
of Reviewers
By Torrey
from Scottsdale, AZ
on May 23, 2022
Verified Buyer
Love this car seat and all Diono car seats! Bought it when my daughter turned 2 and she is still using it at 5! Washes easily and fits back together easily! Has held up nicely! Definitely recommend Diono!
Very sturdy seat…
By Emily
from GA
on February 3, 2022
Verified Buyer
We have used this seat rear facing until my son was 3 and now forward facing. It is so durable! Just gotta remember how to put all the fabric back on correctly after washing.
  • Washable
  • Durable
  • Rear or forward facing
  • Tricky to put fabric back on after washing
By Brooke
from Bradenton, FL
on November 7, 2021
Verified Buyer
This car seat is amazing! Love how skinny they are so you can fit 2 or 3 of them in one row! We are still using this seat for our little on several years later. Wonderful car seats.
We love it!
By Diana
from Alliance, Nebraska
on August 16, 2020
Verified Buyer
I've had this car seat for 4 years now. At first, I thought it was a pain to move the seat from my car to the husband's truck because it is heavy but the more we did it the easier it got. We did have to purchase a new cover for it because my 3-year-old at the time was potty training and had an accident and when I tried to wash it by hand in the tub, the smell still did not come out. Now, 2020 we still have the same cover and seat, even bought a waterproof seat protector. The only thing I kinda don't like is that when he does take naps on long road trips his head will hang forward. Other than that we love it!!
Great car seat.
By Atanas
from Malden, MA
on February 6, 2020
Verified Buyer
We are very happy with this car seat and have been using it for the last 2 years. The only thing I don't like is that it doesn't recline in its forward facing position and that makes sleeping in it uncomfartable. Although my son never complained and it doesn't stop him from falling asleep in the car seat. We will be purchasing the same car seat but the current model for our daughter soon.
Love it
By Courtney
from Mesa, Az
on November 27, 2019
Verified Buyer
This car seat is amazing. Its so cushy and comfortable for our daughter. We bought another one for our son since we like it so much.
  • Rear facing for our 4 1/2 year old
  • Heavy
LOVE this car seat
By Abbye
from Georgetown, Kentucky
on October 28, 2019
Verified Buyer
I love this car seat. It's heavy duty. I read a lot about convertibles and we settled on this one due to its frame design and construction, safety rating, and the many, many great reviews.
The colors are great, it's fairly easy to clean, not hard to install (if you watch the videos). Rear facing, you definitely need the foam accessory to go under. It will lean way back and could cause your passenger front seat to have to be moved uncomfortably close to the dash board. The weight limit on rear facing and forward facing is fantastic. We will definitely buy another for a second child.
  • Sturdy, strong. Great safety rating. easy to clean. luxurious feeling fabric and cushions.
  • Can be more complicated to install if you're not good with these kinds of things, Rear facing options requires the additional foam accessory to go under the seat to allow for more room up front. customer service for Diono is a little slow.
Love the color
By Liz
from Jacksonville, Florida
on July 15, 2019
Verified Buyer
The pattern and colors are what initially attracted me to this car seat. Upon reading the reviews I was sold. I love that i had ample space in my backseat after installment. The only con I have about this car seat is that its a pain to take off to wash the fabric. I dont even think I was able to put it back on properly after my last wash.
Love this seat
By Melissa
from Chepachet, RI
on May 21, 2019
Verified Buyer
I research long and hard before committing to a car seat for my daughter. This seat was perfect. Heavy, safe, easy to install with Extra padding for when she was little with plentry of room to grow. Rear facing until 4 with no concerns. Happy purchase. Would buy again.
Great investment
By Re
from San Marcos, CA
on May 7, 2019
Verified Buyer
This car seat is working great so far. It still looks good in condition. Cleans easy. Have traveled with it a few times and makes it easy with the ability to fold up for easy transport.
Amazing car seat!
By Laura
from Denver, CO
on March 31, 2019
Verified Buyer
Great quality and well made. We love this seat for our heavy toddler. It kept him rear facing much longer than any other seat would have. I took one star because the seat cover faded in the sun rather quickly but all in all this is an excellent product.
Amazing heavy duty narrow carseat
By Janet
from Chula Vista, CA
on February 2, 2019
Verified Buyer
Very strong and heavy duty. The steel frame is amazing. Great narrow seat.
  • Lasts for 10 years. Super comfortable.
Best Uses
  • Narrow cars
  • Heavy. Not easy to install.
Love it!
By Grania
from Lebanon, NH
on November 1, 2018
Verified Buyer
This car seat is sturdy and well made. It fits narrow, no arm rest on two sides, so very easy for my 2 years to get in by herself. It's apparently very comfortable too, because my 2 year old loves riding in it. The sale price was pretty good too!
Absolutely Love!!
By Whatley711
from Hallsville, Texas
on October 16, 2018
I love the Diono Radaint RXT! Love the quality of the car seats and the ease of putting it in and converting it! So easy to clean also... first day of use my child had a stomach virus; needless to say it came right off and I was able to throw it right in the washer!! Looking forward to purchasing another one for baby #2!!
This product review was collected by the manufacturer.
So glad I finally made this purchase!!!
By Kal
from Moscow Idaho
on July 7, 2018
Verified Buyer
I was skeptical at first. I read at least 50+ reviews which were mostly positive. My Dr highly recommended this car seat for safety and longevity so I gave it a try.
Customer Images
  • -Very sturdy and safe.
  • -Very comfortable.
  • -5 point harness easily unclipped with one finger.
  • -Cup holder included and option to add more.
  • -Additional Padding for any fit. Padding for shoulders and chest. Padding to keep lower clip from rubbing. Padding behind head. Padding under back and butt!!
  • -Easy clip system in rear and front of car seat for even more security and stability.
  • -Comes with padding under car seat (sold separately) to help make room and keep from damaging seat.
  • -Arrived in under 5 business days.
  • -Allows rear facing kids up to 44? whereas most are only 30?.
Best Uses
  • Rear facing, front facing and booster up to 120lbs.
  • -Initial set up takes about 20 minutes to get a good fit for your child but after that it took me maybe 5 minutes to transfer to truck from suv.
  • -It is $314 normally but I found it here on sale for $259!
  • - I wish it had a sun hood.
Never been happier!
By Maria
from California
on June 29, 2018
Verified Buyer
I never have to buy another car seat again. It's so comfortable my baby keeps falling asleep which is a plus. I installed with the adjuster in my small versa note hatchback and my husband 6'1 is still able to recline his seat as much as he needs. It was here on time with no issues. I will make another purchase if needed from this site!
Customer Images
  • Fast shipping. Very well packaged.
Best Uses
  • Use with Diono Adjuster for more recline room in car.
  • Very heavy but excepted for a steal car seat.
favorite car seat
By Linh
from Garland, Texas
on May 3, 2018
Verified Buyer
so heavy duty and safe. the only thing is that it's super heavy, def not for moving from one car to another.
By Kylee
from Tampa, Fl
on May 3, 2018
Verified Buyer
If you're considering this car seat, buy it! We've been through the Graco forever, Chicco Nexfit, and Maxi Cosi Pria 85 Max. Graco was fine, but not a comfy seat. Chicco was nice and plush, but a pain to get our kiddo in and out of (he's really tall) and Maxi Cosi didn't tighen properly (we had two). I wish I started with Diono! I was thrown off by its look at first. It looked like a booster, and with a market flooded of car seats, I assumed I was reading something wrong that it fit an infant. Silly me. I love it, my son loves it, and so does my husband. Highly recommend!
  • Comfortable Seat
  • Easy tightening system
  • Tall enough for bigger kids but still safe for tiny ones
  • Folds and offers strap for travel
  • None!
I followed installation but it seems unsafe for my infant.
By Mama C.
from Lewisville, TX
on May 1, 2018
I started using Diono seats after my two older children's seats expired. My middle child was around 9 months old at the time, my oldest nearly 3.5. Now, a year later, I have purchased an additional Diono seat for my infant. I LOVE these seats for my older children, but the seat does not recline enough for me to feel safe putting my infant into it-he appears to sit chin-to-chest in a seat that is determined to sit upright. I went to 3 different fire stations today to have them check the installation, and they all said that it was installed exactly as the manual describes...but that they too felt it was too far upright for a young baby. I won't be throwing my seat away, but I am upset that I will have to purchase an infant seat until my son will fit into the Diono. He is over 8 1/2lbs and should fit safely into the seat, as per advertisement.
This product review was collected by the manufacturer.
Proud owner or the Rainer
By Mystiesmommy
from Humble tx
on February 17, 2018
Best carseat on the market in the US. We have proudly owned our Rainer since 2014. The cover is stained but the carseat in general is just as great as the day we bought it. Its safety features give me such peace of mind on the road.
This product review was collected by the manufacturer.
Diono Rainier
By Nelly
from Los Angeles, California
on February 6, 2018
Verified Buyer
I LOVE this car seat! I purchased it for my 8 month old daughter. I had another brand but they were too bulky, took too much space and my daughter would hate getting in it. The Diono is perfect! My daughter is tall for her age but is super comfortable in the Rainier. No more fighting to get her in her car seat. Just bought a second one for grandma and grandpa's car. :) Knowing she is safe is worth the extra weight. Highly recommended!
  • Child fits comfortably
  • Thin design to fit smaller cars comfortably
  • Safety
  • Pattern is discontinued :(
  • Wish they would have more colors and patterns to choose from.
My kids love them!
By Bruce
from Jacksonville, Florida
on February 1, 2018
Verified Buyer
My kids may not like being held still for very long but they never complain about being uncomfortable or that they do not like the car seat. Their rear ends are big fans of this seat. I don't like how heavy and large it is when traveling through an airport but I think my small sacrifice is worth it. The safety, comfort, and longevity of this seat is unbeatable. I have purchased two, 18 months apart and would do it again.
  • Comfort, and safety
  • Weight
Only Carseat I would ever use!
By Jessica
from Prince Rupert, BC
on January 28, 2018
I have two Diono Rainiers. My son is 3 1/2 and my daughter is 1 1/2. Both sit rear facing. These car seats are worth the money. They are sturdy and incredibly safe. My husband is a Firefighter and has seen car accidents involving children. He and I love our Diono's. We have flown with our car seats many times. They are heavy and can be cumbersome to travel with, but their durable construction is worth the weight. The safety of our children is more important than the weight and price of their carseats.
This product review was collected by the manufacturer.
Very sturdy.
By Susan
from Lewisburg, PA
on January 9, 2018
Verified Buyer
This is a very sturdy seat, the fabric is good my son doesn't seem to get hot sitting in the seat. It is easy to install. The one draw back it you have to remove the seat and reinstall when you need to adjust the height of the harness.
  • Strong and sturdy
  • Must uninstall car seat to adjust harness height.
Doesn't fit anywhere near the 57'
By Vonda
from Raleigh, NC
on January 4, 2018
Verified Buyer
Even though it's advertised to accommodate a child up to 57' and/or 65lbs., the upper shoulder strap slots are at 17'. The shoulder straps have to come out at or above the shoulder. This seat won't handle a child over about 45'tall. It was useless to me since I was counting on it to accommodate a child in the 5 point harness for above the normal height. I'm going to have to return it. It's a nice seat, very sturdy and safe feeling, but it isn't able to be used as described. Albee was very prompt, and did their part. This problem is with Diono. They need to be realistic in their height accommodations.
  • It was very sturdy. Heavy. Well padded! Nice color. Albee did their part. This problem is Diono's specifics not being realistic.
  • Won't accommodate a child over about 45', even though it states up to 57'. I do have to pay for return shipping

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