Last year we took a look at the EntroSys Motorcycle Air Conditioning system, which is a vest that's designed to blow cooling air across the torsos of leather-jacket-clad bikers. While the EntroSys needs to be attached to a bike-mounted air conditioning unit, there are doubtless many sweltering people who would appreciate a similar but more mobile garment, that they could wear while walking around or working outside. Well, needless to say, there is one - it's the Kuchofuku Air-Conditioned Cooling Work Shirt.

The shirt features two fans which run at high or low speeds, as selected on a back-mounted control box (we're assuming that's where the fans are mounted, too). Air circulation is 20 liters (5.28 US gallons) per second at high, and 12 liters (3.17 US gallons) per second at low. Everything is powered by two AA batteries, although no run times are listed.

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Kuchofuku also makes beds, seat cushions and mats with built-in fans.

The garment itself is made from polyester, is available only in dark grey, comes in four sizes, and weighs about 550 grams (19.4 oz) - presumably the fans and control box detach for washing. It can be purchased online from Japan Trend Shop, for US$186.