Taion is a Japanese brand that makes inner down — lightweight down jackets and vests designed to be worn under a coat rather than instead of one. The name means body temperature. The range here
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Taion FAQs
A down jacket cut to be worn underneath a coat rather than as the outer layer. The baffles are narrower and the shoulders are less bulky than a standard down jacket, so a shell or overcoat still fits over the top. It also works on its own in milder weather, which is the point — one piece covering two jobs.
Body temperature, in Japanese. The brand launched in 2016 and took the name from the idea that clothing should regulate warmth rather than simply add it.
A 90% down and 10% feather blend. The higher the down proportion, the more warmth you get per gram, which is how the jackets stay thin. The shells are high-density nylon with a water-repellent finish, and the stitching uses a thread designed to stop feathers escaping — the usual weakness in cheaper down.
A deep-pile fleece, often on one face of a reversible piece with nylon on the other. It gives you a fleece and a shell in a single garment, and it is warmer to the touch than the down pieces without being warmer overall.
Taion is Japanese and sized accordingly, so it generally runs smaller than UK equivalents. The reversible and inner-down pieces are cut close by design, since they are meant to sit under a coat. Check the measurements on the individual product page rather than going by your usual size.












