Now if it were me I'd be wearing them without hesitiatoin because it would be less wait and what not and slow you down unlike the other shorts that are long and baggy and less airodinamic and what not plus what is the big deal with wondering what others think plus do you thing they would even notice because after all it is a race and if you really want to win than who cares if you have womens or mens underwear? So go for it and good luck.