Unsafe for use in car seats
I'm a carseat tech. Car seat manufactures prohibit the use of aftermarket products like this. They compress in an accident. If you'd like your baby to be ejected from their seat, by all means use one! Otherwise, but the products that just go over the seat, but not between the baby and the seat. They can also cause your baby to overheat.
ProsNice for the stroller
Best UsesUse it in the stroller.