I spotted a reference to this on an OM forum thread. Sounds very interesting: “Ion-mask technology is a breakthrough in surface enhancement. It works at a molecular level, binding invisibly to the surfaces of products, giving them an extraordinary ability to repel most liquids.” I have had two pairs of Hi-Tec boots over the years and found them very comfortable. My biggest criticism was the sole rubbers weren’t very grippy. Let’s hope they pay attention to that as well. Trail are also featuring the Ion-mask on their blog.