I bought these here to use for a full marathon, but the size and the sole didn't fit, so I only tried them on. New, unused. They have light cushioning and a good design, so it's a shame. Please, someone, use them. US10 28cm The NIKE ALPHAFLY 3 is a lightweight running spike shoe with excellent cushioning, perfect for track and field. - Brand: NIKE - Model Name: ALPHAFLY 3 - Color: Black - Features: Lightweight design and excellent cushioning Thank you for looking.