Thanks everyone. I will try the sponsor first. Interestingly, gaiters (thanks, Cervus. My spelling was a combo of gators, and gaiters ha) are part of the solution to getting rid of heat. When I arrive in hot Africa to hunt, I meet up with a PH. Cardio wise, I am in good shape. But these guys wear light shoes, canvas gaiters, short pants, a short sleeved shirt with open neck, and a breathable hat. All cool stuff. But us boys from the Rocky Mountains....we haven't seen the sun. My skin is white, and I need long pants and long sleeves. Combine boots, hot gaiters, and a sun-blocking, neck covering hat, and overheating on a long hike becomes the norm. This next hunt, I'm adding the light cool outfit to my equipment list (also working on the tan, scraped, scarred legs)...................FWB