Shop boys' underwear in red, blue, green, yellow, gray, and many more interesting colors. Uniqlo is a clothing brand founded in Japan. The brand is known for its magnificent outerwear, sports utility, and winter and comfort wear for men, women, and kids. Uniqlo now operates around 1000 stores worldwide and raises the bar high of being a global brand. If you like vibrant and colorful fashion, multicolor is for you.