Big man's compression shorts provide support for muscles during exercise. The compression increases blood flow with light massage from the spandex. An added benefit from these big men's compression garments is the reduction in lactic acid buildup that happens when your muscles are active. Another benefit from these garments is the way the garment holds your muscles in place and reduces movement or bounce from exercise. This helps reduce fatigue. If you keep the garments on for a little while after exercise it will also help with soreness and recovery for the next day. These garments fit big men very well.