The one size fits all theory for lanyards is okay, but if you are going to make a lanyard, make sure it fits you. I have found some lanyards to small, some too large. I make a pattern, so I know it fits right.
Get a 4 foot piece of rope, about 3/8" or 1/2" in diameter. I use rope so I can use the twist to mark where I want the drops. With twisted sisal rope you can slip a piece of para cord through the twist to locate your drops.
Then make sure you have the clothes on that you would wear while hunting. You need one for summer and one for winter clothes. Take the rope and hang it around your neck, to get the length you want. Next mark your rope on each side for where you want your drops to be located. Now you can make a true fit lanyard.