Shop blazers and suits to add class to your style and adorn the professional look like a pro. Theory, a global designer label from the US was established in 1997, and it is headquartered in New York. You can shop Theory’s range of women’s and men’s clothing, footwear, and accessories through any of its 434 retail stores or via Amazon, Uniqlo, etc. Sky blue also refers to the endless water element of nature.