- Men's black viscose blend shirt - Retro collar, short sleeves - Exclusive IKKS pleated fabric - Button closure - Straight cut, no back pleats and no yokes - Wear with coordinating Bermuda or suit pants Pleated effect, successful effect. This black shirt flirts with the codes of the suit. The detail that changes everything: a bold texture for an assertive look. Wear it with Bermuda shorts or matching pants.