First off, a small background story for why I bought this shirt (and another in a different color). I was going to go hiking in Death Valley, CA during early March. Death Valley is known for two things: being very hot and being very dry. During March, the temperatures are actually manageable and the most that can be expected was high 80s with early morning temperatures in the low 50s. I knew that I needed clothing that would be relatively warm in the morning but could be worn throughout the day