EXCR Perf Micro-Piqué™: Our proprietary piqué knit, featuring a micro perforated knit pattern for maximum breathability, and 4-way stretch for exceptional range of motion Premium Fabrication: Subtly textured surface prevents the fabric from sticking to your skin; it's also durable, anti-wrinkle, and easy to care for Collar Perfection: Hidden buttons keep your collar in place and keep you looking sharp all day, through the 19th hole Smart Design: Inset color-blocked chest stripe; classic three-button placket; piping at collar and placket; contrast ribbed cuffs; and side slits at the hem Distinctive Branding: Extracurricular "pill" logo at left chest in high-quality 3D silicone appliqué Fiber Content: 88% Polyester / 12% Spandex *** [note: this is a different fiber content than the other Perf Micro-Piqué polos] Styles at 50-60% off are FINAL SALE and are only eligible for size exchanges.