Historically, there's been no difference in sizing for men and women's rugby balls.  However, a lighter ball is being introduced for women.

Both men's and women's divisions have played with size 5 rugby balls.  There is now a size 4.5 rugby ball for women which is 10% lighter than the size 5.  We will have the Gilbert size 4.5 ball available in the Fall of 2020.  

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