One thing that DIIV has undeniably cultivated is a certain, for lack of a better word, aesthetic—that quintessentially millennial, carelessly cool, baggy-shirt-baggy-pants-European-jazz-shoes Brooklynite look that perfectly matches their laid-back, yet guitar-heavy, washed-out sound. Despite their niche persona (or perhaps because of it), they have wide appeal, and wowed the crowded High Watt last night at their show.