Intelliskin Foundation Long Sleeve Shirt - Men's The IntelliSkin Foundation Shirt 2.0 provides supportive compression and aggressive PostureCue™-ing of the muscles that support and align your spine and shoulders. A special blend of fibers creates a high quality compression fabric that is approximately three times more resilient than traditional fibers. Ideal for athletes seeking strong posture improvement during workouts, recovery, running, and such sports as football and baseball. 56% nylon/44% Lycra® Power. Imported.