Brought to you by the manufacturer of the popular keeper menstrual cup the moon cup provides comfortable internal protection for women with latex sensitivities the moon cup size a is designed for women who have given birth vaginally while the moon cup size b is meant for women who have not given birth vaginally the moon cup menstrual cup provides you with the same benefits as the keeper but is made of soft non latex medical grade silicone introduced in 2006 the moon cup is innovative e