UnderJams are a pull on style diaper used as a way of managing bedwetting that are made by Pampers. They are similar to GoodNites. "UnderJams" claim to be softer and quieter than GoodNites, and even though the package states that they will only fit children up to 85 lbs. Also, because of their low waist, they are hardly visible under pajamas.
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Origins
UnderJams were introduced in 2008 in the US, as a direct competitor to GoodNites.
Diaper Size Guide Video
Designs
For boys, UnderJams initially had a pastel green color, with some assorted designs. For girls, they were a purple pastel color, again with limited designs, as opposed to the GoodNites which are white but have many designs.
Recently, the designs for both genders have been updated with more brightly colored designs.
Sizes
Pampers UnderJams come in 2 sizes; small/medium and large/extra large the weight ranges for which are specified below.
Source of the article : Wikipedia
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