very light at just 202g. They immediately feel flexible, responsive and fast. The fit is snug but not tight and the breathable mesh material makes them very comfortable without socks, as well as easy to snap on and off. They are so light they immediately set you off quickly. You wouldn’t want to rack up 100 miles in a week in these, but a quick 10k will be very quick indeed. It’s for the short run and race day that these shoes were made. Surprisingly they eat up the miles over every surface and coped admirably in the wet too. Pleasingly they seemed durable and sturdy enough despite their minimalist feel. The additional heel support (to help runners adapt to their zero drop profile) was a nice touch to the unboxing experience.