Description says the shoe offers more cushion. Not sure I felt that way as compared to my Pearl Izumi shoes I have been running in, but the stiffer ride didn't make them any less comfortable.  I'm not the biggest guy, but I can appreciate the durability these would provide a larger runner compared to traditional heel cushioning. I have the yellow shoe, and I love the style and visibility. I run on streets for the most part, and I am always conscious of just how visible I am. Bright colors are a must, maybe even more important than reflective during the day. So I appreciate shoes that have an eye catching look. Overall these are right up there with the most comfortable shoes I have ever worn. Right out of the box I put them through a 5 1/4 mile run and they felt great.