My favorite coolmax jersey is not tight. But it is coolmax. Local rides I wear cotton t-shirts, I feel clammy, awful. Coolmax is a tremendous invention. I do not market Coolmax or any other 'new fabric,' but that moist hot feel of regular street clothes would discourage me from going out. New fabrics actually wick better than no shirt at all. Guess you can tell, I am sold. I almost think the wicking thing, feels like a fan on the body.