Burberry model Cara Delevingne is known for her perfectly groomed brows and long blond locks, and at yesterday's Serpentine Gallery party in London, she spiced up her look by sporting a hippie-chic headband with her flowy white dress. This accessory is perfect for the season, as it adds a free-spirited, bohemian edge to any hairstyle and can be achieved with a headband, scarf, or just a piece of fabric you may have lying around. Whether your hair is straight, wavy, or curly, the key is to wear the band low across your forehead; this positioning is what makes it truly '60s chic. Click the headbands below to shop.