Shop boys' underwear in red, blue, green, yellow, gray, and many more interesting colors. Shein is a Chinese fashion and apparel company that sells clothing, footwear, backpacks, and much more for men, women, and kids. The brand’s other products include jewelry, fragrances, etc. Confused about what color Underwear to wear? The most selling Boys Underwear are Multicolor, White and Black. 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 Modal. Our collection for Shein Underwear for Boys is including Everyday and Casual and more style. Shop for the best suitable style online.