Daio Paper announced on September 9, 2026, that it would renew Attento Chousu Pants Shitagi Sokai and Usugata Pants Shitagi Kibun, with nationwide Japanese sales scheduled for October 21. Each line comprises 12 items. The company is adding light grey alongside Elegant Pink Beige, a colour developed with Wacoal, and redesigning packaging to show the garment's shape and colour more clearly.
Shitagi Sokai uses a stretchy material and a lower waist cut intended to remain less visible under clothing when bending. Shitagi Kibun offers a light-grey-and-white boxer style with a streamlined absorbent core and stretch lines, plus a pink-beige pull-on style with a soft fitting material. Daio lists 300 ml absorption for both lines, measured using its own method with 150 ml per urination. M and L sizes are offered in standard, large and two-piece trial packs. The company also describes a breathable outer sheet and deodorising effects against ammonia and acetic acid.