Is the Reactor jacket fairly light weight...
Is the Reactor jacket fairly light weight fleece?
Thanks for your question. The Marmot Reactor is built from Polartec Classic 100 weight fleece. There is 100 weight, 200 weight, and 300 weight fleece in the Polartec fleece family. That being said, the Reactor is lightweight, and would work great for three season use. I hope this is helpful for you.