unjour bowl - rainy grey

by yumiko iihoshi


French for one (un) day (jour), the unjour series of tableware is inspired by the relaxing moments we enjoy throughout the day; in the morning, afternoon or evening. The different sized dishes bring to mind various recipes for everyday.

With a Design that is both simple and functional, Yumiko’s porcelain tableware is ideally enjoyed using your own mix and match style. The unjour series is available in several beautiful colors, the calm tone of each piece fitting comfortably within your daily lifestyle.


    • Color: rainy grey
    • Dimensions:
      • S:  H4.7 x W7.5cm
      • M: H6.1 x W10.5cm
      • L:  H8 x W15.8cm 
  • Material: Porcelain
  • Originated from: Japan
  • Also available in nami (light grey), Sakura-Kumo, and Beige.


  • Due to the natural materials, there is variation in appearance, texture, and grain.
  • This product is 100% handmade, uneven glaze is normal.

To Care

  • Microwave safe: Yes
  • Dishwasher safe: Yes

About the designer

Yumiko Iihoshi’s concept is to create a design that is on the boundary between handmade and conventionally manufactured products. 

After graduating from Kyoto Saga University of Arts, studying a Porcelain major, Yumiko started her own porcelain collection under her own name. She designs and oversees the manufacture of porcelain tableware which combines the use of molds for uniformity, with hand glazing by artisans, to ensure each piece has a sense of individuality.

 “It is not something that every single claim is too apparent. I thought that it would be nice to have warmth in design, but not argue too much.”

All products are crafted in Japan. Each ceramic glaze and shape is unique and original, taking inspiration from the functionality and pure sense of a vessel. 

The aesthetic forms and unique palettes are infused with a sense of nostalgia, inspiring us to reflect and reminisce about time while using it in our daily lives.

Shipping and Return


Free shipping to 48 Continental States of the United States for orders of $99 and above.


To initiate a return, please send us an email to hello@slowsunday.life for return authorization.

All returns are for store credit and must be made within 14 days of items arrival date. Items must be returned with no signs of wear or usage, and in their original packaging. We reserve the right to reject returns that do not comply our return policy.

See full shipping and return policies here.