The #310 is a basic safety boot that's packed with features. A steel toe cap for maximum protection and XRD®Extreme Impact Protection make for a more comfortable and safe day on the job. SPECIFICATIONS Black print leather elastic side safety boot Chelsea cut upper SPS Max—XRD® Technology in the heel strike zone for increased impact protection. Polyurethane midsole. Thermoplastic polyurethane (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 (310)-