The range, designed for children aged four to 12, provides protection from bedwetting a condition that more than 500,000 children in the UK suffer from, according to the company.
UnderJams were first launched in the US and will go into UK retailers this week (rsp: £5.19). The absorbent pant is shaped like underwear, with sealed sides and a low-fitting elasticated waist. "UnderJams provide a convenient alternative to mattress pads or covers, in a discreet format that allows children to continue to be active," said P&G trade communications manager Paul Lettice.
P&G is pitting Pampers against Kimberly-Clark's number two nappy brand Huggies, which has a DryNites range that caters for four to 15-year-olds.
UnderJams come in two sizes and male and female variants.