These cocktail napkins are hand-dyed using the Japanese shibori technique: They’re dipped repeatedly into natural indigo dye, then allowed to oxidize—that’s what gives them that deep, beautiful blue-jeans color. Because they’re handmade, every napkin will be little bit different, which is what we love most about them. Slide one under a cold beer or a highball (or, okay, a tall glass of water!).