These materials (like ZnO) can be made so light and 'breathable' that I can do my landscaping work in the high desert of Arizona without trouble. I need complete coverage due to a skin condition, and this is also the perfect wrap for when you are caught without a hat. I just wish they had it in "warm" colors like tan, brown, or that lovely violet they used to have. They also wash up well, and I dry them normally. After years, it's still uv-resistant despite weekly washing and drying.