Our McDavid Deluxe Compression Shorts are made of a 6.8 oz/sq.yd., lightweight 85% nylon/15% spandex fabric with Intera, a patented process that permanently bonds hydrophilic (water-loving) molecules to synthetic fabric surfaces. What this means is that McDavid Deluxe Compression shorts will literally pull moisture away from your skin and spread it rapidly over a broad surface area to speed the evaporation process. This keeps you drier and more comfortable even during the toughest workout, and results in increased performance and a more efficient use of your body's energy budget.