As said above, if textiles you have are OK then stick with them. Some leathers have perforated panels to allow a bit of air flow, so in warm to hot weather this is a great coolant when riding. Check out RST gear, they are reasonably priced and good kit. I personally prefer leather, as I was told, when setting out on my biking adveture, that it gave better abrassion resistance. This coming from my cousin who`d had an off and suffered some pretty bad road rash. I do have a textile jacket (Richa Rix-2) but to be honest, it`s crap at keeping out the rain.