Colourful Sandals: Birkenstock Siena Sandals If you want a sandal that's colourful and comfortable, go for these cute Birkenstock Siena Sandals ($130). They're slightly different from the classic Arizona sandals, but we love the orange for summer. Plus, the cork footbed will mold to your feet, making them supremely comfortable. Image Source: freepeople.com Birkenstock Siena Sandals $130 from freepeople.com Buy Now