Belted and thick-waistband dresses are having a moment, and honestly, it makes perfect sense for a wedding guest look. The defined waist creates a clean, sculpted silhouette without any fuss, and the belt or structured band adds just enough visual interest to feel intentional and polished. They strike that sweet spot between flattering and fashion-forward, elevated enough for a ceremony and comfortable enough for a long reception. Perfect choice, and trend-approved.