Kuchofuku Air-Conditioned Vest KU91830

First place is hard to get to but even harder to hold on to. Just ask Kuchofuku, the company that came up with the fan-equipped, air-conditioned clothes that are now part of Japanese workers' summer uniform back in 1994. In the intervening years, Tokyo-based Kuchofuku never stopped improving its designs, making its fans stronger and with more autonomy, and finding new fabrics like the Aircontech the new Kuchofuku Air-Conditioned Vest KU91830 is made from. This fabric that minimizes air leakage is just one of the things that make the KU91830 an excellent choice for surviving the summer! What are the others? The fans and battery department! The Kuchofuku Air-Conditioned Vest KU91830 comes with a new battery that has variable outputs from 12 to 25 volts and increases the volume the two fans can move to a maximum of 103 liters per second. The improved output also improves the jacket's autonomy, taking it to a maximum of 16 hours! And all that in eight different sizes and three colors (gray, black, blue) so you can find one that matches both your body type and sense of style! Specs and Features: Air-conditioned outdoor vest with 2 fans Aircontech material that minimizes air leakage Drawstring-adjustable hem Zippered chest pocket Cord-adjustable neck Water-repellent Ultraviolet protection factor: 50+ Can be used in sports, outdoor activities, etc. Can be worn over work or regular clothes Colors: navy, silver, black Fan colors: gray, black, blue Buttons: snap type Max. air volume: 103 liters/sec. (25 V), 82 liters/sec. (20 V), 60 liters/sec. (15 V), 48 liters/sec. (12 V) Fan thickness: 47 mm (1.9") Battery dimensions: 123 x 84.5 x 29 mm (4.8 x 3.3 x 1.1") Battery weight: approx. 402 g (14.2 oz) Fan weight: approx. 115 g (4.1 oz) Battery operating voltage: 12 V, 15 V, 20 V, 25 V Charging time: approx. 5.5 hours Operating time: 2 hours (25 V), 3.5 hours (20 V), 8 hours (15 V), 16 hours (12 V) Material: 100% Aircontech polyester Comes with: 2 fans, battery, AC adapter, battery pouch, fan cables Instructions/manual: Japanese