The Spiro is built with all of the features you would expect from a Cat work boot. Featuring ERGO; a series of design principles that work together to deliver footwear that promotes foot health by integrating stability flexibility and comfort.Conforms to EN ISO20345:2011 Safety Footwear StandardsStrobel and Cement constructionRemovable Nylex and PU InsoleT870 Rubber OutsolePenetration resistant poured PU midsole constructionImpact and compression resistant toe capAnti-static and energy absorbing heelWater resistant upperHigh heat resistance of 300CSlip resistance SRC - Resistance against slipping on both ceramic and steel surfaces covered with water and cleaning products