On March 20, 2026, Kang Ye-bin updated her Instagram with breaking news: due to overwhelming demand, the 'Flow Training Pants' sold out quickly. In her post, she spotlighted the pants' clean silhouette and comfy, year-round fabric, and revealed that once this group-buy ends, prices will increase starting in April. Urging fans to hurry, Kang said, "This is the last chance to buy at the lowest price." Fans flooded the comments, praising the pants' appeal and showing strong interest.