As of my last knowledge update in January 2022, there isn’t specific information about “Kairis Merch.” It’s possible that this term refers to merchandise related to a particular individual or brand that gained prominence after my last update. If “Kairis Merch” is associated with a person, character, or brand, I recommend checking the latest and most reliable sources for up-to-date information. Additionally, providing more context or details could help generate a more accurate and tailored response.