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Newborn - 8 yrs

Sunshine Kids Juvenille Products Radian 80SL Car Seat

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About the Radian 80SL Car Seat

There's nothing like a family trip to test your patience - and your physical endurance. Toting around a few suitcases, a stroller, diaper bag, purse and more can leave even the calmest parent feeling quite frazzled. Even if you are just taking a car trip to see the in-laws, moving your family from point A to point B is tough. Luckily, there is a car seat that offers both superior safety as well as portability. Meet the Radian 80SL by Sunshine Kids.


The Radian 80SL is an updated version of the popular Radian 80 Convertible Car Seat.  It incorporates Sunshine Kids' SuperLATCH™ technology that allows the car seat to remain installed with the specially designed LATCH connectors until your child reaches 80 pounds. This is a tremendous innovation, as most car seats can only safely be installed with LATCH if the child is 48 pounds or less.


This convertible car seat is strong as can be. The Radian is the only car seat constructed from a steel alloy frame. Rear-facing, it can hold young kids weighing 5-45 pounds, and forward-facing, up to 80 pounds. Yet, its outer shell is surprisingly narrow. Despite the roomy seating area in the Radian 80SL, the small footprint allows you to fit three car seats across most back seats, or install it in the center seat, leaving room for passengers on either side. This easy-to-use car seat even folds up flat, to a mere 7” depth. You can tote it through the airport in its Travel Bag (sold separately), stow it in your trunk, or even slide it under a bed.


With Sunshine Kids car seats, safety is the absolute priority. The 5-point harness has five slots for the shoulder straps and three slots at the crotch, securing your child completely. The Radian 80 positions your child’s center of gravity as low and as far back as possible on the vehicle’s seat, giving it extra stability. There’s also EPS foam at the head, torso, and seating area, which provides extra padding in case of impact. It’s a plus for comfort too. The seat includes a V-shaped tether for the rear-facing position (this is not the case for many other seats), a patented Lock-Tite harness clip, and it is LATCH equipped.

Spilling the Beans: The seat weighs in on the heavy side at 25.75 pounds, due to its steel frame. But since it folds flat, it’s better to think of it as just another piece of luggage.


Note: Installing a car seat base is not a skill that comes naturally. Please visit a certified inspection station to learn about proper installation and to verify that your base is installed securely and correctly.


Radian 80SL Car Seat Specs

Sunshine Kids Juvenille Products
Max Weight Capacity:
80 lb.
Min. Weight Required:
5 lb.
Max Height Capacity (in.):
Additional Side Impact Protection:
5-Point Harness:
28.5"H x 17"W x 16"D (open)
Manufacturer's Product Number:
Metro: 18564, Primrose: 18562, Sport: 18560, Shadow: 18568

Features and Benefits

Holds up to 80 pounds

Highest capacity convertible car seat with steel alloy frame

4-panel system EPS safety foam

Offers total side-impact protection

V-shaped top tether

Can be used rear-facing

5 shoulder and 3 buckle positions

Offers proper fit for range of ages and weights

Narrow outside width

Lets you fit three seats across the back seat

Infant body support

Converts to pillow cushions for older child

Folds to 7” thick

Incredibly convenient for travel and storage

Low profile

Easier to get child in and out

Curved Lock-Tite harness clip

Ensures correct fit for infants

Extra-thick cushion padding

Very comfortable for kids

3" more interior shoulder width and 3" longer seat bottom than any car seat in its class

Gives your child more room to grow, comfortable design

4.5 out of 5.0 stars
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2 Customer Reviews for:

Radian 80SL Car Seat

2 user reviews.
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Radian 80SL Car Seat
Mari B.
San Jose, CA
  • Verified Reviewer
  • Parent of Two or More Children
  • Parent of Multiples (Twins etc)
5.0 stars out of 5.0 stars

Can fit 3 across!


Sturdy, Stylish, Safe, Easy to install, Easy to Clean, Easy to Adjust, Comfortable



We LOVE our Radians!! I have 3 under the age of four and although we do have a minivan, we are also able to seat out kids three across in our Volvo too! (Just try that with a Britax...) Although Radians are heavy, it doesn't really bother me since I much prefer a heavy steel-framed seat than a lightweight, flimsy plastic one. Also, they do fold for travel so that's a convenient feature. Overall, I can't say enough good things about this seat. (Oh, and the pink one is very pretty!)

Yes, I would recommend this to a friend.
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Radian 80SL Car Seat
  • Verified Reviewer
  • Parent of Two or More Children
4.0 stars out of 5.0 stars

Great Car Seat


Easy to Adjust, Safe, Sturdy, Comfortable, Easy to Clean, Stylish


Hard to Install, Bulky

We love this seat, it is nice and tall so it will last a long time and my daughter loves the pink flower print cover, she calls it her princess seat. It can be a pain to install sometimes but it is not too bad.

Yes, I would recommend this to a friend.
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