These are so great; I'm bummed they don't fit me. These are marked XXL but they would best fit a guy who wears a medium or a guy who wears Large and likes his fit to keep everything very well in place. They fabric is 93% Nylon and 7% Elastane. They texture is very much like a silky fabric but one that would be perfect for gym workouts, hikes, runs, anything that calls for keeping the boys all in place with a firm hold behind below the cheeks. The army green color and shimmery aesthetic is pretty dang hot. I wish they fit me. Please note that these are new and in their original packaging. Not worn.