Runner's T-Shirt: 5K, 10K, 21K, 42K

Show off your love for running with this stylish black t-shirt. The shirt features bold, stacked text displaying popular race distances: 5K (teal), 10K (yellow), 21K (salmon), and 42K (purple). The design is eye-catching and perfect for runners of all levels. Made from a comfortable fabric, this tee is ideal for casual wear, training runs, or post-race celebrations. Express your passion for running and inspire others with this unique shirt. A great gift for marathoners and jogging enthusiasts!