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: Two-button placket for a modern look, with angled bottom seam; self-fabric collar; and side slits at the hem Distinctive Branding: Extracurricular "pill" logo at left chest in high-quality 3D silicone appliqué  Fiber Content: 94% Polyester / 6% Spandex Size Guide: Model is 6'0" and 175 lbs. and wears size Medium. All polos run "true to size" All discounted styles are Final Sale and are not eligible to be returned for a refund.