This famous European sportswear company has a memorable and recognizable logo that was designed by Adolf "Adi" Dassler.  His brother Rudolf Dassler also assisted in its design.  The logo font is a custom typeface that works very well.  One of the things that makes this logo somewhat unique is that all the font is lowercase.  The logo has evolved but still retains its recognizable features.  The current logo is meant to represent mountains and the goals that want to be reached. The logo is a good example of creative simplicity in design.

info from - http://famouslogos.net/adidas-logo/