Temperature Regulating - Perforated, featherlight, innovative CoolcoreⓇ fabric rapidly pulls sweat away from your skin. Cooling Moisture Wicking Lightweight Breathable Quick Drying Tagless Label Modern Fit - More relaxed mid-section that may be worn tucked or untucked. Sleeveless, With Classic Crew Neckline - Wear under dress shirts or on its own while working out.