The running distance is about 50km. The size is 26.5cm. I usually wear 26cm in other running shoes, but this shoe fits tight, so 26.5cm is just right. [Design] The simple and stylish black design is easy to match with various styles and is suitable for a wide range of uses, from everyday wear to sports scenes. [Functionality] It uses lightweight and breathable materials, providing a comfortable fit. The rubber sole also has excellent grip and supports stable running. [Tread Pattern] The tread pattern on the sole improves traction on various terrains, making it suitable for outdoor use. - Brand: Nike - Color: Black - Sole Material: Rubber - Sole Design: Tread Pattern Type...Running Shoes Gender...Men Purpose...Jogging