Polo shirt by Calvin Klein Golf, A fail-safe wardrobe addition, Polo collar, Button placket, Logo detail to chest, Fitted cuffs, Regular fit, True to size. Launching a line of golf clothing and accessories, Calvin Klein brings its modern-minimalist aesthetic to the fairways. Whatever the weather, get your gear up to par with the labels water-repellent soft-shell jackets, hooded windbreakers and tech T-shirts.