This item has been stored at home for a long time. Thank you for your understanding. Although it is new and unused, it was manufactured in 2018. Material Supplement Foamed polyurethane sole products are widely used because they are "lightweight, have good cushioning, and are resistant to wear," which contributes to reducing worker fatigue. However, due to the characteristics of foamed polyurethane, it may deteriorate and break down regardless of the degree of use if stored for a long time. This phenomenon is called "hydrolysis of foamed polyurethane," and moisture in the air, water, acids, alkalis, bacteria, and mold are cited as causes of deterioration. *Generally, the frequency of occurrence increases when stored for more than 4 years after manufacture. Weight/Capacity Standard weight: 980g / foot *Weight for both feet *Standard weight is based on 26.0cm. Size 28cmEEE Height: 260mm [from the sole to the opening] Color: Black Standard: JIS T8101