If you’re fashion designer Michael Bastian, there’s only one way to ensure you have the perfect weekender bag: design your own. And then fill it with just the right mix of clothes and accessories to handle any situation – whether business or pleasure. Bastian, a champion of classic American design, won the prestigious CFDA Menswear Designer of the Year Award in 2011, and recently collaborated with Uniqlo on a line of classic polo shirts. He took time out to talk us through his travel essentials – Yankees cap included.