The mark consists of a stylized lower case "i" in light grey at the left abutting a larger stylized "s" in dark grey as a center element which when combined with other features in light grey give the impression of a stylized "f" on the right so that the overall impression is of a stylized "isf" mark centered in an orange round background having a silver outer edge.
The color(s) orange, dark grey, light grey, and silver is/are claimed as a feature of the mark.