94% Polyester/6% Elastane. Super-soft pinhole mesh delivers superior breathability without sacrificing coverage. Material wicks sweat & dries really fast. 4-way stretch construction moves better in every direction. Anti-odor technology prevents the growth of odor-causing microbes. Rolled forward flatlock seams deliver a comfortable, chafe-free fit. Classic racer back. Shaped drop-tail hem offers superior back coverage. Fit: Slim