Answer:
The more of me there is the less you see.
I run through hills. I veer around mountains. I leap over rivers. And crawl through the forests. Step out your door to find me.
The higher I climb, the hotter I engage. I cannot escape my crystal cage. What am I?
Against the sun I protect your eyes and am often worn on the face of spies
I have more shoes than anybody but less feet than everyone. I am met in the morning but departed in the night. I may shake as if I'm angry but I won't bite.
Though not a plant, has leaves. Though not a beast, has spine. Though many wouldn't need this thing, It's more valuable than wine.