Explore our shirts collection from the best brands in the market, i.e., Levi's, Gap, Lacoste, Marvel, Diesel, Calvin Klein, and others. Theory was co-founded by Andrew Rosen and Elie Tahari with a vision to manufacture thoughtfully designed luxurious clothing for men and women. Theory brings you an assorted range of men’s and women’s pants, jackets, jumpsuits, dresses, blazers, shirts, jeans, bags, gloves, etc. Pink color symbolizes cuteness and sweetness. Once you have picked the right style and budget for you, the next step is a selection of fabric. We have a variety of fabric options like Cotton and Lyocell.