Updated Huggies Adventurers are "the most flexible nappy ever", claims the company. The upgraded nappies feature a flexible fit waistband and stretchable outer cover.
The Huggies Adventurers launch will be backed by TV and press advertising this winter, as well as instore activity.
Marketing manager Catherine Baudinette said: "Continually adding value by creating products that keep babies, and therefore parents, happy is what drives our vision of the category.
"The new nappy has been redesigned, with every component reworked to deliver improved fit and comfort."