Time to stock the latest sweater for your winter wardrobe from our top-of-the-line collection. 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. Shades of gray include cool gray, warm gray, dark, light, slate gray, and blue-gray.