Runners should have a selection of different running tops for various conditions. We recommend using dedicated running tops, because while cycling jerseys are breathable, the cut and details are significantly different. The right running top should almost "disappear" when running. It should be light, breathable and never pinch, rub or restrict mobility. For particularly cold days, make sure that the collar is high and choose functional fibres that are rougher on the inside. For really hot training sessions, light tank tops are popular with both men and women. Most manufacturers today offer a wide range of fashionable designs; so with all the focus on function, you don't need to neglect your look.