Elwiss is a seam bowler with the ability to make significant contributions with the bat.
An MCC Young Cricketer in 2010 and 2011, she represented Staffordshire before being taken on by Sussex.
Her performances at Hove saw her called up to the England 50-over squad in June 2011 as a replacement for the injured Jenny Gunn, although she did not feature that summer.
Elwiss made her international debut on both limited-overs formats on the victorious tour of South Africa the following October and won further caps on another successful trip, to New Zealand.
She was player of the series for her economical 50-over bowling versus India in the summer of 2012 and was chosen in the squad for the 2013 World Cup in India.