Loop | 15 Years of Tsurugi Jacket vol.2
loop
THE LOOP
An idea to loop between factories and fields
The first sample of the "Tsurugi Jacket" that came out of the factory was a rough prototype at that point, so we made small changes to the shape details such as the size of the hood, the size of the armholes, and the length of the sleeves and hem.
The completed prototype model is then handed over to multiple climbers for testing in actual ice climbing situations. With backpacks on, they approach snowy mountains, sometimes struggling through deep snow, and scale icefalls. Through this series of actions, they identify any defects or areas for improvement. That is the role of field testing.
The first field tests for the Tsurugi Jacket were carried out by two climbers, an Australian and an Englishman, who were the driving force behind the development. This was around the time we started supporting mountain guides, and I remember finding their feedback, which was different from that of skiers, very refreshing.
Currently, many support guides, climbers, and skiers are scattered throughout Japan and overseas, conducting repeated field tests in different natural environments, not only for new products but also for the staple items they use on a daily basis.
The field test is not "just like the real thing," but the real thing. It is a test that is possible because the prototype is nearly complete, and it serves as a final check before release.
Naturally, the feedback we receive is quite varied, and it's not uncommon for opinions to differ even on something as simple as an improvement to a pocket. That's why, in addition to reports, we also meet face-to-face when necessary to thoroughly discuss why the improvement is necessary.
After careful communication and a certain degree of consensus, we make a final decision based on the TETON BROS. concept.
Every prototype model that leaves the factory is always put to the test in the field. The feedback gained there is reflected in product updates, and the following season a new prototype incorporating the latest materials and specifications is taken out into the field again. This process has been repeated every season.
The updates may involve major model changes or may be limited to very minor shape adjustments that are not listed in the catalog. However, this never-ending loop is the essence of "optimization," and is supported by many colleagues who continue to use our products in the field.
We climbed silently through the mountains, where the temperature had dropped to below -20°C due to radiation cooling. This was also a field test for one day. By the time we reached the drop point, dawn would have broken.