UnderJams were a pull-on style diaper made by Pampers for managing bedwetting.

They were discontinued in 2020 in favor of the new Procter & Gamble product, Ninjamas.

UnderJams were introduced in 2008 in the US, as a direct competitor to Goodnites.

[1] For boys, UnderJams initially had a pastel green color, with some assorted designs.

Pampers UnderJams came in two sizes; small/medium and large/extra large the weight ranges for which are specified below.