These are among the cheapest looking shoes I have ever seen. Poorly glued, cheap materials and potentially toxic as well. The Amazon description says they are leather and mesh but the box and shoe do not say leather anywhere and I looked at the edges of the "leather" with a magnifying glass and know this is fake; it looks fake, the black "leather" is ridged to make it look even cheaper. The warning on the bottom of the RYKA box says "This Product May Contain Chemicals Known To The State of California to Cause Cancer, Birth Defects or Other Reproductive Harm." I wish Amazon had disclosed this and correctly described the material content!!!! Needless to say I am not wearing these; I will be sending back. I find the other reviews hard to believe; I just don't see how a shoe created with such cheap materials can be so great. Just talked with a RYKA representative and yes this shoe contains a carcinogen according to the state of California and it is not leather.