Most shorts that are used for physical activities like running, cycling, jogging, etc. have a netting or soft mesh. The presence of this mesh ensures that the wearer does not get any rashes as a result of the skin rubbing against the cotton fabric. Also, it is the mesh lining or netting that gives the shorts their sweat wicking or absorption property. Additionally, the net or mesh lining also ensures proper air circulation to let your skin breathe.