Standard Polyester S Mesh resists squeegee abrasion better, especially in shops that do not adjust squeegee angles or pressure.  Typically with all S mesh you can use slightly more angle and less pressure than is needed for T or HD mesh.  The benefits listed below also apply to Polyester S-Mesh with the exception of the thread construction.  LX has unique thread construction.  See mesh guide below for available mesh counts.
Benefits:
Less squeegee pressure needed.
Stronger base plate opacity.
Softer Hand plastisol prints.
More retained details in the print.
Stronger color for discharge with more image detail.
Higher mesh counts can be used with similar results to lower mesh counts.