The Rocky First Med truly is an amazing boot for EMT's and paramedics. That's right, if you work in the Emergency Medical field, this is your boot. The First Med comes standard with a blood borne pathogen resistant outer coating. The interior of this waterproof marvel houses a carbon fiber safety toe that is as sturdy as steel, but less than half the weight. This boot is made with natural full grain leather and nylon Cordura mesh for easy movement. The Rocky Guaranteed waterproofing is not only at the bottom, but throughout the entire boot. This boot comes with a side zipper for easy on and off application. The First Med also is slip resistant for all environments. This is a work juggernaut.