I have the original oilskin version of this hat and although I love it to pieces it’s just too hot to wear in the summer with the Georgia humidity. I got this hat because I love my original River Guide so much and was hoping for something similar but a bit lighter and more ventilated. And this hat delivered in every way shape and form. Everything about this hat’s design is for comfort and ventilation. The material itself is lighter and more breathable than the oilskin version. I am delighted that the mesh is not flimsy at all so there is no way for it to bend and obstruct your airflow. Even the chin strap feels like it’s made of lighter material. Today was a warmer, muggier day and it already did a great job keeping the sun off my face AND my head cool my entire ride and during all my barn chores. This hat will, no doubt, be an asset this summer!!!!!