Every Major U.S Sports League is Now Selling Branded Face Masks.
MLB (Major League Baseball) was the last on board, but they have now joined MLS, NFL, NHL, NBA and WMBA in selling branded Face Masks.
As with all Face Mask related post we are not here to debate the use of Face Masks, these are not medical grade Face Masks, and these are not taking supply of Face Masks away from those medical facilities that need them.
Source: Joseph Myers