Bas Kosters was born and raised in the Dutch town Zutphen.

Then he studied Fashion Design at the AKI Academy of Fine Arts in Enschede until his graduation in 2001.

In 2004 Bas Kosters designed a stroller for Bugaboo International, the collaboration was repeated in 2011.

In 2012 he presents the collection 'That puts the 'U’ in Ugly', that includes the 'penis pants' a legging with a print of penises.

This item (officially called 'Is that a cock or your legs') gets a lot of international attention.