This is a hoodie midlayer piece that keeps you warm and comfy if you are just hanging around the campfire but doesn't have you overheat if you are climbing a steep hillside.
(so steep there was a rope support system).
Wearing it hiking, it is thin but tough. There are pockets to hold items and looks pretty snazzy as well. Of course, the biggest thing that I love about the Ecolator (or any piece of outdoor equipment is.... thumb loops!
I always think these are must haves, especially in sunny climates like SoCal, and the folks at Terramar have truly thought of everything.
This really is the best piece of gear I have gotten in some time and I can't wait to take it on more adventures or just wear it bopping around the neighborhood. Either way, the Ecolator will suit your adventure purposes!
For more info about the Ecolator check out here: http://www.terramarsports.com/product/W8761
I am part of the Terramar Tribe and receive products from time to time to test out. My reviews are my own and I will tell you whether I like something or not. That being said, this is the internet, take everything with a grain of salt and learn from it what you can.