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ITEM# S864800

Britax Seat Saver Waterproof Liner

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The BRITAX Seat Saver Waterproof Liner is designed with deep sides to fit securely into the seating area of your car seat to contain liquids and crumbs and keep your car seat clean. Perfect to protect from diaper leaks, potty training accidents, and wet bathing suits, the waterproof design is made out of EZ-Dry wicking fabric to pull moisture away from your child and keep the seating area dry and comfortable.


  • Waterproof design captures liquids from diaper leaks, potty training accidents, and wet bathing suits to prevent the car seat or vehicle from being soiled
  • Designed with deep sides to fit securely into seating area keeping liquids and crumbs contained and reducing contact with the car seat
  • Textured bottom grips seating area to prevent slipping
  • Compatible with all BRITAX and most other brands of harnessed car seats and strollers
  • Machine wash and dry
  • Crash tested and approved for use with BRITAX car seats
  • EZ-Dry fabric wicks moisture away from your child and keeps the seating surface dry and comfortable

out of 5.0
16 Reviews
Ratings Snapshot
5 Star
94% (15)
4 Star
6% (1)
3 Star
0% (0)
2 Star
0% (0)
1 Star
0% (0)
of Reviewers
By Brittany
from Wisconsin
on February 21, 2022
Verified Buyer
A must have! Nobody likes blow outs or leaks through the diaper this is a life saver.
Absolute lifesaver!
By Jnicole24
from Washington
on August 3, 2021
Verified Buyer
Protects the areas that needs it. Has saved me grub having to wash the entire car seat cover
A true lifesaver for accidents
By Mimi
from Austin, TX
on April 3, 2021
Verified Buyer
This is a wonderful addition to prevent needless work in washing our car seat. Has saved us a few times now. Highly recommend!
Love these!
By Amy
from Monroe, Washington
on September 19, 2020
Verified Buyer
These are great for my Britax seats. They keep crumbs from going down the adjuster hole and they keep pee from potty training kids from going all down in the seats and on to the vehicle seats.
Easy to use and clean
By Clairy
from Pennsylvania
on February 6, 2020
Verified Buyer
Seems to fit well and will be easy to clean
Works great!
By Kelley
from Waldo, Florida
on October 21, 2019
Verified Buyer
Had no issues with this seat protector. Works great and keeps the car seat dry!
Great purchase
By Glendy C.
from Edinburg, texas
on September 6, 2019
Verified Buyer
Best invention
By Erin
from Liverpool, New York
on August 24, 2019
Verified Buyer
I specifically bought a Britax seat because I knew they made this insert. My seat has been spared many times already because of this insert. Love the material and how it's grippy so it stays put
  • So easy to use
Perfect Fit & Total Lifesaver!
By Michelle
from Lacygne, Kansas
on August 15, 2019
Verified Buyer
We purchased the Britax Seat Sacer Waterproof Liner for our Britax Advocate Clicktight ARB after beginning potty training our 2 year old & it has been a life saver! No longer am I worrying about her having a accident & having to disassemble the whole car seat to clean it, the seat saver catches any leaks & catches crumbs & comes out easily to clean!
  • Catches Crumbs
  • Waterproof & catches leaks
  • None
Helpful for traveling
By Michelle
on January 27, 2019
Verified Buyer
Very helpful for long rides specially if you are potty training.
  • Waterproof
  • Easy to use and to take off
  • Washable
Best Uses
  • Love it so far.
  • None
Good for the price
By Ash W.
from GR, MI
on January 26, 2019
Verified Buyer
I purchased this seat liner for my newlynpotty trained kiddo. Heís currently in a Britax Fronteir. It fits OK...thankfully, we havenít had an accident in it-yet! The hole where the crotch strap comes up thru is quite large. Iím worried that if/when he wets, that it wonít protect the seat as much as Iíd like. That being said, the quality is great! Itís soft, and thin enough that my son doesnít seem to notice or mind it.
No worries
By Beth
from bfrederick8201@yahoo.com
on June 29, 2018
Verified Buyer
I don't have to worry about spills . My daughter spilt her entire drink and this saved the seat .
Great for potty training
By sara
from saginaw, MI
on May 10, 2018
Verified Buyer
Great for potty training and messy kiddos
  • Waterproof
Best Uses
  • Potty training, messy kids
  • Can only be used safely on britax seats ONLY
great waterproof liner
By heidi
from new jersey
on July 14, 2015
Verified Buyer
it works great to keep the seat dry on the random occasion that a diaper leaks. I have no worries when I start to potty train that her car seat will stay dry.
Saves the carseat
By bruce
from Dupont, WA
on May 16, 2015
Verified Buyer
Our 23 month old is in potty training mode. This seat save has worked a few times with no leakage onto the carseat.
Great Quality
By Katie
from Long beach , mississippi
on December 20, 2014
Verified Buyer
Great quality. Makes protecting the seat simple. Easy install and easy reinstall. Even fits other brands is seats!

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