First off, you have to know I love buying good underwear. I import from as far as Australia the get what I want. I was a little sceptical about the two chamber system Separatec has, but now that I have been wearing them, I love them. What guy doesn't like sticking his d%$k through a hole anyway! The separation does provide comfort and keeps everything at a good temperature. Going to the washroom is a little trickier, trying to get your penis out of the flap/front pouch, but it's not the end of the world. Would have given them a 5 star but the cotton isn't that soft. I will probably try one of the other fabric blends next. I definitely recommend this product.