this pad fit in the Radian carseat perfectly . I use this for my potty training son . luckily , he have have no accident yet in the seat , but he have spill juice . it do contain all of the juice that be spill . I feel that it would work just as well in the case of a potty accident . this be a great investment if you be look for a carseat insert that fit snugly -lrb- with the radian -rrb- . I would recommend this item .