Collaboration items featuring San-X’s popular character “Rilakkuma” and the Shimamura Group’s casual brand “Avail” will go on sale at Avail stores nationwide starting September 5, 2026. The lineup includes a total of 25 items, such as a pass case with a retractable cord, insulated bags, and loungewear, and they will be available at the online store starting at 12:00 p.m. on the same day.