2016 Tour T-Shirt by Flume typically asks about $24 on Music Merch Marketplace (M³), based on live listings from eBay, Discogs, and official stores. That is 47% below the typical apparel on M³ at $46. Condition, size, and signatures can move a single copy's value.
Music Merch Marketplace (M³) doesn't have enough live listings over time yet to say whether 2016 Tour T-Shirt is going up or down in price.