Explore swim trunks and rash guards for boys from the likes of Kanu Surf, Shein, Adidas, Russell, Nike, etc. 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. The shades of blue include dark, light, navy, sky blue, powder blue, ice blue, etc. Don’t go just plain. Choose from Tropical, Printed, Graphic, Colorblock and Animal Print types of Shein Blue Swimwear for boys.