Retro shirt styles are back, blending unique designs with sustainable fashion. From bold 70s florals to oversized 90s flannels and timeless Cuban collars, these vintage shirts add character and charm to any wardrobe. Pair them with modern pieces for a contemporary twist or keep it classic with solid bottoms and minimal accessories. Whether it's a rugged denim shirt or a breezy Hawaiian print, these styles offer endless versatility for casual and semi-formal settings.