Worn a handful of times on a treadmill, obviously not much as you can see they're very clean. They are Size 10.5 but I would say they fit more like a 9.5, I wear a Size 10 in most shoes and these are tight as hell on my feet lol. On that note, I just clearly described their size so all sales are final. Below is the autogenerated description from AI on the eBay app. Not sure how accurate it is, but figured I'd add it for fun. If anything in it is inaccurate, that's eBay's fault, as the claims made are by eBay and do not represent my description of the shoes lol. Enjoy: Elevate your running game with these Nike React Infinity Run Flyknit 2 sneakers in black. Crafted with Nike's signature React technology, these athletic shoes provide unparalleled comfort and support during your workouts. The Flyknit upper molds to your foot for a personalized fit, while the durable rubber sole ensures traction on any surface. Ideal for men who want to stay stylish while working out, these sneakers feature a sleek silhouette, Nike React branding, and a size 10.5 fit. Perfect for athletic activities, these sneakers are a must-have for any sneakerhead.