Who says that you cannot layer up when it is warm out side? I do it all the time, it is all about how you layer. For example, do not wear a merino wool sweater with a button-down shirt when it is 75 degrees outside, instead, go light. Pair a tank top with a button-down or flannel shirt–with the sleeves rolled up–think of it as a t-shirt that is cut open. And finish with your favorite jean and sneakers. Although it is fun to show some skin, it also cool to layer up.
meninstylesociety.com 
These corduroys are fantastic. Bought these olive cords more than a year ago. I love to wear these tight slim corduroys. I feel so hot with these corduroys on.