Sierra Mist is a lemon-lime flavored caffeine-free flavored soda. It was introduced by PepsiCo in 1999, and rolled out nationally in the United States in 1999. Sierra Mist replaced Slice and Storm. In 2016, Sierra Mist has been reformulated, and then the name has been switched into Mist Twst. In Summer 2018, Mist Twst was later reformulated back into Sierra Mist. Sierra Mist competes with Coca-Cola's Sprite. Sierra Mist is advertised with other Pepsi brands such as Mountain Dew, Pepsi, and Diet Pepsi.
In the summer of 1999, Sierra Mist hit restaurants and hit stores in 2000, replacing lemon-lime Slice and the test-market Storm. Pepsi's selection of the name "Sierra Mist" was based on favorable market research, involving 2,000 people. Sierra Mist was selected from over 1,000 possible names.
A Sierra Mist Zero Sugar was introduced during this time as well, though from 2005 to 2008 the drink was renamed Sierra Mist Free before reverting back to its original name in November 2008. The product was sold in two thirds of the continental US, until January 2003, when the remaining Pepsi bottlers in the US still bottling 7 Up switched to Sierra Mist.
Sierra Mist contains carbonated water, high-fructose corn syrup, citric acid, natural flavors, potassium benzoate (preserves freshness), potassium citrate, ascorbic acid and calcium disodium EDTA (protects flavor). The diet version replaces the HFCS with aspartame and acesulfame potassium.
In 2005, a series of improv-based commercials titled "Mist Takes" began airing. It featured Nicole Sullivan, Debra Wilson, Aries Spears, Jim Gaffigan, and Michael Ian Black . In 2006, Kathy Griffin, Tracy Morgan and Guillermo Diaz joined the cast. Also in 2006, a version for Spanish-language channels began airing. The Spanish version stars Diaz and members of the cast of Otro Rollo.
In late 2006 PepsiCo introduced Sierra Mist Cranberry Splash. It was only available during the Winter holiday season. Cranberry Splash returned in the fall of 2007, 2008, and 2009 along with Diet Sierra Mist Cranberry Splash. In May 2007 Sierra Mist Lemon Squeeze was introduced. This limited edition featured an extra bit of lemon taste and was only available through September 2007.
Sierra Mist's can was redesigned as a part of Pepsico's redesign of its core products in 2008, with Sierra Mist Free reverting back to the Diet Sierra Mist name in the process. An October 2008 report that PepsiCo was planning to launch the Sierra Mist brand in the United Kingdom, in connection with the aforementioned relaunch, has been denied by the company.In 2009, Sierra Mist Ruby Splash (with a ruby grapefruit flavor) and Sierra Mist Free was released, with the same logo matching the current one that launched in November 2008.
On December 18, 2015 Pepsi announced that the name of Sierra Mist would be changing to Mist Twst at an unknown point in spring 2016, in line with Pepsico's sponsorship agreement with the NBA, which replaced Coca-Cola's previous sponsorship and its broad campaign with the league for Sprite. The name change was officially made in late March 2016.
In 2016, Sierra Mist has been reformulated, and then the name has been switched into Mist Twst.
In Summer 2018, Mist Twst was later reformulated back into Sierra Mist.