I like these Duncans for durability and the right combo of heat tollerance and protection for gritty dogs. Alot of these aussie brands work well for the gritty/catchy hunting dog that has to run in the heat etc.....specifically the breast plat for curs, it doesnt chaff the skin either
http://www.youtube.com/watch?v=lF2M3Femu2khttp://www.duncanspigdogcollars.com.au/pig-dog-collars-products.htm