Tu es mon Tresor's first menswear collection reaches BIOTOP October 30: three black-denim pieces and Tokyo preview
Designer 佐原愛美 creates a work jacket, oversized shirt and wide straight jeans for BIOTOP, priced at JPY 41,800–70,400. Tokyo's October 29 preview precedes the all-store release.
Tokyo brand Tu es mon Tresor is introducing its first menswear collection, designed for BIOTOP and launching across BIOTOP stores on October 30, 2026. Designer 佐原愛美 connects three pieces through black denim: the Moonstone Jacket, Turquoise Shirt and Chalcedony Jean. Announced prices range from JPY 41,800 to JPY 70,400. The Tokyo store separately hosts advance sales and a reception on October 29 from 17:00 to 20:00; that date should not be confused with the all-store launch.
A front view of the oversized shirt styling.
Three black-denim pieces: what makes each different?
The JPY 70,400 Moonstone Jacket has a shorter, boxy shape, six pockets, a corduroy collar and matte-gold buttons and rivets at the chest and cuffs. Its identity comes from upper-body volume, pocket distribution and the contrast of the collar surface. In campaign images, broad shoulders, sleeves and body avoid a close-fitting outline, while small metal highlights articulate the dark surface. Actual feel and thickness still require product information or a fitting.
A seated view of the dark upper body and wide trousers.A jacket detail shows the collar, pocket and metal elements.
The JPY 44,000 Turquoise Shirt translates Western-shirt references into an oversized silhouette. Back details are retained mainly through stitching, with glossy black pearl snap buttons at the front and cuffs, keeping decoration from depending on strong colour contrasts. Images show it buttoned alone and worn open over a white layer. Compare its hem with the jacket length rather than assuming the same colour gives both pieces the same silhouette or role.
The shirt worn open over a white layer.
How do the wide straight jeans work? Look at the drawstring and leg room
The JPY 41,800 Chalcedony Jean is a relaxed, wide straight style with a matching waist drawstring. Paired with a short boxy top or oversized shirt, it connects volumes above and below rather than insisting on a narrow denim outline. Seated, standing and walking campaign views show the legs in different positions, but cannot determine your trouser length, waist fit or alteration needs. Individual measurements remain the basis for buying.
Front proportions of the short boxy jacket.Room in the trouser legs in a seated pose.
Photographer 池谷陸 shot the campaign with chef 青木虎太郎, PR communications professional and model 尾崎悠一郎, and actor 名須翼. Putting people from different professions in the same black-denim collection suggests possibilities for everyday use. These are brand campaign photographs, not our wear testing or a promise that the subjects will attend the event. Window light, white walls and seated poses help compare proportion without establishing untested comfort claims.
Plan Tokyo's October 29 preview separately from the October 30 release
Advance sales and the reception take place at BIOTOP TOKYO on October 29, 17:00–20:00, at 4-6-44 Shirokanedai, Minato-ku, Tokyo. Natural wine and tacos from Shintomicho's mehishiba are announced. This is a specific Tokyo-store time slot, not other branches' business hours. The introduction does not guarantee food and drinks for everyone, every size in stock or unconditional admission places, so confirm arrangements with the store before a dedicated trip.
October 30 is the announced start of sales across BIOTOP stores; delivery, sizes and stock remain subject to each store's information. Decide first whether you need a short jacket, oversized shirt or drawstring trousers, then compare length and volume with your existing wardrobe. The three-piece and Tokyo-event announcement lists names and dates. Yen prices are not Taiwan retail prices, and the all-store announcement does not establish distribution in Taiwan.
