The elastic side design of the #311 makes them easy to slip on and off. As well as being electrical hazard resistant, this boot is also fitted with XRD® Technology for supreme impact absorption and comfort. SPECIFICATIONS Brown waxy leather elastic side safety boot SPS Max - XRD® Technology in the heel strike zone for increased impact protection. PU midsole and TPU outsole highly resistant to hydrolysis and microbial attack oil, acid & organic fat resistant heat resistant to 140˚C slip resistant Comfort Air PU footbed which is anti-bacterial, breathable and washable Ergonomically engineered toe spring for reduced wearer fatigue Steel shank—ensures correct step flex point, assists with torsional stability Full heel breast with arch support for ladder and gantry safety Electrical hazard resistant Broad fitting Type 1 steel toe cap tested to resist a 200 joule impact Blundstone Unisex Elastic Sided Safety Boot (311)-