DV-UM3 means:

DV Vipal exclusive design

U Recommended for urban use 

M Indicated to use in drive and trailer axles

          Sipes that provides excellent grip in snow conditions, minimize irregular wearing, stability and safety. 

          Grooves’ sculpture designed to minimize retention of rocks and objects and to allow better water outflow in the rotational direction.

          M+S marking that guarantees good performance in mud and snow conditions.

          Alpine Symbol, or 3PMSF, that certifies when the tyre is designed for severe snow conditions. To earn this qualification, the tread was submitted to rigorous testing at a major laboratory accredited by the European authorities, according to standard ECE R109.

          Good mileage performance and excellent resistance against wearing by abrasion.