Features:<br />-functions: puncture proof， wear resistant， non-slip， air permeability， anti-piercing damage<br />-application occasion: mining industry， steel industry， smelting industry， chemical industry， etc.<br /><br />Specification:<br />-gender: men;<br />-seasons: spring， summer， autumn， winter;<br />-sole material: non-slip rubber;<br />-lining material: cotton fabric;<br />-upper material: highly breathable nylon fiber;<br />-color: grey， red， blue;<br /><br />Steps to Choose Right Size:<br />1， pls. measure your foot length (heel to toe in cm);<br />2， pls. choose the size acc. to the following rules:<br />CN size 39= foot length 23.6-24cm= US size 6.5;<br />CN size 40= foot length 24.1-24.5cm= US size 7;<br />CN size 41= foot length 24.6-25cm= US size 7.5;<br />CN size 42= foot length 25.1-25.5cm= US size 8;<br />CN size 43= foot length 25.6-26cm= US size 9;<br />CN size 44= foot length 26.1-26.5cm= US size 9.5;<br />CN size 45= foot length 26.6-27cm= US size 10;<br />CN size 46= foot length 27.1-27.5cm= US size 10.5;