I mentioned this before years ago - beware kneeling chairs - and now kneeling desks. If you wear jeans or cords and have hairy legs, during the process of repeatedly sliding in and out of the knee padding you'll rip the hair out and have bald spots. Speaking from experience. "And it don't grow back." Knee-toupees aren't an option. Kilts will be out for you, everafter. I shave my gams for cycling in the summer, so it's not a big deal. But if your aesthetic runs to Burt Reynolds bear rugs and manly shorts ... you may wish to prefer the standing desks.