Clip path or borders for shapes like triangle and simular?

Hi, I have design for webpage where everything is made by non-rectangular shapes, polygons, sharp edges… I consider which technique is better to use, clip path with css or with borders? I am asking because i saw on other authors on ThemeForest are using border technique for shapes.

@anisthemes , when working with the image directly, IE supports clip as in rectangular shapes only but not clipPath complicated shapes. so if you want your theme to supported on IE better go for border technique.