If anyone here has ever been in 40+ heat then you will know that the less skin you have exposed to the sun the cooler you will be, plus you avoid having nasty burns, I can't imagine how painful a sunburnt penis would be, I'm cringing just thinking about it Of course the best item of clothing to keep you cool when it's hot is a big floppy broad brimmed hat, even better is a flap cap(but those look daggy )