A very well made leather halter, soft supple leather and quality hardware.   These halters don't shrink like nylon, and they'll last years.  Hand made by Besthorsegear.com, right here in the US.

This isn't the kind of cheap leather tack you buy on Amazon.  Except for the sewing machine, this isn't machine made tack.  It's hand made with top quality materials that will last a lifetime.