Who are the ones to watch? Who are the England stars? How did they do last season? All your questions answered ahead of the new Rachael Heyhoe Flint Trophy and Regional T20 campaigns...
The new women's domestic structure in England and Wales will enjoy its first full season in 2021.
A total of 41 women have been awarded professional contracts for the first time as a part of the project, which will see eight regional teams take part in 50-over and 20-over tournaments.
Team-by-team guides for the eight sides can be found by clicking on the links below.