Heineken USA brought back its popular Beers of Mexico variety pack with a new, limited-edition variety: Dos Equis Invierno. The mixed pack also includes Dos Equis Lager, Tecate and Sol beers. Dos Equis Invierno is a winter bock that adds a seasonally relevant style to the Beers of Mexico variety pack that will encourage trial and drive incremental sales for retailers this holiday season, the company says. The Beers of Mexico variety pack is available through Dec. 31 in 12- and 24-ounce-bottle formats.