With all the different leathers out there, I was wondering what are the inherent properties of each and the postive/negative aspects. For example, cordovan leather properties are that there are no pores and the leather is relatively thick compared to say calfskin. Cordovan I understand is naturally waterproof and extremely good with wear. Can someone tell me the properties or deerskin, calfskin, lambskin, ostrich, alligator, etc. There are too many for me to name.