Another thing to consider is the strength of your Master and the roughness of your time together. If he is the type that likes to grab by the collar, or bind by the collar, you DEFINATELY need something that is more durable. I would not suggest the pretty beaded ones or the ones with pretty (but flimsy) clasps. Again, practical before pretty is best for collars.

One other thing, make sure you involve your Master in the choosing of a collar. He may have some VERY GOOD input. And, it is best, when being fitted for the collar, to allow him to take ahold of it so that it is also the right "feel" for him and that there is enough room for his fingers to fit through. Allowing his four fingers between your collar and your neck is definately best for most.