'nuthin' special
So far as I can see, this isn't a new formula on offer. I had a quick look at this latest 'flying wear' site, but for the life of me couldn't see anything particularly special there compared to what is available on the high street.
Many of us will remember 'Stormbyrd', which for a short while really did try to offer clothing specially designed for flying, but fizzled out after a relatively short period in business.
Broomstick.