SIN87, rooted in "Outdoor Techwear Sun Protection, Avant-Garde Lightweight Street Style", focuses on functional yet fashion-forward sun-protective apparel. Featuring UPF50+ sun shirts, plaid patchwork hoodies and mesh see-through jackets, it uses cooling fabrics, bold color blocking and relaxed silhouettes. Perfect for outdoor activities, city walks and techwear mix-and-match looks, they deliver a casual yet unique street vibe.