A kipa from Belle Kipa is made in a slightly looser stitch than the tight, Israelistyle available at most Judaica shops. The resulting fabric is pliable and somewhat stretchable, and will mold to fit the head. In the larger sizes, it will often stay on without the aid of clips or bobby pins. The fabric breathes, and several customers have told me their heads feel cooler in one of these kipot than others they have worn.