beret

from WordNet (r) 3.0 (2006)

beret
    n 1: a cap with no brim or bill; made of soft cloth

from The Collaborative International Dictionary of English v.0.48

beret \beret\ n.
   a cap made of soft cloth with no brim or bill, widening
   somewhat outward from a close-fitting headband to a flat top,
   which often has a button or tab in its center.
   [WordNet 1.5 +PJC]