From the developer guide: > The icon font weighs in at only 42KB in its smallest woff2 format and 56KB in standard woff format. By comparison, the SVG files co

From the developer guide: > The icon font weighs in at only 42KB in its smallest woff2 format and 56KB in standard woff format. By comparison, the SVG files compressed with gzip will generally be around 62KB in size, but this can be reduced considerably by compiling only the icons you need into a single SVG file with symbol sprites. So not that large, but I still prefer SVG icons.