One of my coworkers went to Tokyo for business last week (いいな), and he kindly brought me back a souvenir. Pictured above is a pair of Heat Tech gloves with タッチパネル対応 (touch panel support). Apparently we have these in the U.S. too, though I wasn't aware of the existence of this textile technology. Normally when you use a smartphone or tablet, the screen won't respond to your finger if it's encased in some kind of glove or other accessory (chainmail gauntlet?). In this case, some kind of special material (I assume) allows you to use your device while rocking handwear. Thanks Mr. N!
As a side note, when I was living in Japan I bought some Heat Tech t-shirts from Uniqlo and couldn't really tell any difference. How about you? Do you think the Heat Tech is legit or just a scam?