https://www.investopedia.com/articles/investing/092215/top-5-tips-etfs.asp#:~:text=Exchange%2Dtraded%20funds%20(ETFs)%20that%20invest%20in%20TIPS%20and,purchasing%20power%20due%20to%20inflation.

Exchange-traded funds (ETFs) that invest in U.S. Treasury inflation-protected securities (TIPS) present a convenient way for investors to gain exposure to these government-guaranteed fixed-income instruments. TIPS are Treasury securities indexed to inflation, meaning that when inflation rises, so does the principal amount of the security and the associated interest payments.