661 evo am mips helmet the evo am mips all mountain helmet in blackgray as the name implies the six six one evo am helmet is a next generation trail helmet with all the features you need the modern looking shell is built from contigo foam which was chosen for its energy absorbing properties specifically its claimed to absorb as much as 30 more energy from an impact than the eps foams used in almost every other certified bicycle helmet while that may be the most important detail more