What's the difference?
The numbers correspond to the amount of denier (the density of the material used to achieve compression) in each pair of tights. For example, a Venere 140 will feature more compression than a Venere 30.
Marilyn 30, Marilyn 70 Sheer, Marilyn 70 Opaque,
New -- Marilyn 70 Open Toe and Marilyn 140 Open Toe
A line of refined, elegant and sleek hold-up stockings crowned with an alluring silicone lace band for an unrivaled look and superior comfort. Precision graduated compression acts to give relief and well-being to legs. Available in various compression classes.