Elegant Simplicity, Upgraded Performance. Classic Gets Pushed Forward In A Shirt For The Urban Environment. Hidden Snap-front Closure, Laminated Hem, Laser Cut Collar Take It Beyond Button-down. Performance Comfort Comes From The Durable Nylon Stretch Fabric That Holds The Fit, Moves With The Body. Sleeve Vent Closes With A Single Snap, Underarm Gussets Improve Mobility, And Fluorocarbon-free Dwr Treatment Helps Repel Moisture.