I don't want a strap to soak up 50 percent more moisture than cotton. The last thing I want around my neck is a wet, clammy strap -- especially one that hangs onto moisture long enough to attract bacteria, mildew, and the smell that goes with each. I also want to put my binos back in the case when I'm done, without worrying about a bunch of moisture in there. In short, I want a strap made of artificial fiber that wicks moisture away quickly and dries out fast.
I'm a hunter. The only thing I want absorbing moisture is a towel.
Along the same lines, "biodegradeable" means it breaks down (as in rots) in nature. I want my bino strap to last -- and not start breaking down when exposed to heat, cold, sun, moisture, etc.
I'm all for being "eco-friendly" with some things, but I have my limits. I think one artificial strap that lasts for years is better for the environment than repeated manufacture and disposal of "eco-friendly" straps that have to be replaced periodically.
A perk of majoring in wildlife biology in college is the plethora of hunting knowledge that you collect throughout your course load. One of the most important factors in whether an area can hold large quantities of animals or produce large antlers is forage.
Most universities, state schools and even community colleges offer basic botany courses and plant ID courses. Although it might not be feasable for the average middle age hunter to pay tuition and go back to college to learn hunting...