The Icon are goat skin (I think) they're thicker than my older A-stars. A bit thick for Summer and too thin for Winter, good feel and soft. My Odins are the SMX, these are my Summer gloves. They're Cowhide and a little thicker but, perforated palms and breathe VERY well. I wish the SMXs had palm sliders, beyond that I like them a lot and they look new still after 2 years.