The T20 Blast, officially known as the Vitality Blast for sponsorship reasons, is a professional Twenty20 cricket league in England and Wales. The competition was established by the England and Wales Cricket Board in 2003. T20 Blast is the oldest domestic T20 league in the world. It is one of the top-level Twenty20 league in the world. Vitality Blast comprises 18 teams, with 17 in the England and 1 in Wales.
The competition has been known by a variety of names due to commercial sponsorship.