I agree! Seems mad right?! But a study by C.R.Kyle entitled "Athletic Clothing" for "Scientific American" found that it reduced drag by 200g at 30mph... I convert this to a Cd.A figure and the calculator recalculates the reduction in drag at your speed (the page defaults to 17.5 miles in 1 hour but you can change that) to determine how much faster you'd complete the course if you put the same effort in; 33 seconds in the default case!