When I put these on they immediately felt comfortable. For the first three hours, I resisted the temptation to purchase a full set and discard every other boxer brief in my wardrobe. Then it all went downhill.

I am an athletic guy with strong legs, and that means there will be some friction between my legs. Within hours of first wearing this product, the fabric in the crotch began to pill - something I have seen in other products, but not to this degree. The other element of this pilling that I have not seen in other products from other brands is best described as a cob-web effect. The fabric caught between one side and the other, between each side and the crotch - I had to physically pull the fabric apart when I took off the boxer briefs. This pilling and catching and webbing led to riding up in the crotch (which leads to riding up everywhere) and significant discomfort. I washed them and tried again - same result. I do not know if this is an ExOfficio problem or a Sport Mesh problem, but they are unwearable after two uses.