I mainly wore this during warm-ups before running races in the winter. I am selling it because I no longer wear it. Please check the attached photos for the condition of the product. The size was difficult to see, so I've marked it (photo 5). There is a feeling of use due to wear and tear over time, but the functionality is not compromised, and I think it can still be worn. *Please refrain from purchasing if you are nervous about used items stored at home m(__)m