Bold black polyester swim trunks for men in size M combine quick‑dry technology with a sleek, tailored cut. Lightweight fabric resists fading, offers UV protection, and stays breathable under sun or surf. An elastic waistband with an adjustable drawstring ensures a snug fit, while side pockets add practical storage. Perfect for beach days, poolside lounging, or active water sports, these trunks deliver both style and performance.