Nixx Annaliese cotton is mid-waisted period protective underwear with pretty lace detail to the front. Nixx Annaliese harnesses our special technology to handle your moderate flow periods, without the need for pads or tampons and are leak-proof. The black protective panel does not stain so no more spoiling your good underwear with period leaks. Nixxworld Period underwear are both environmentally friendly and cost-effective and also cut down on waste from disposable sanitary products. Free Shipping.