Iris & Lilly is designed to make you feel gorgeous. All of our lingerie, nightwear and swimwear is developed by an expert team of designers in London. Our unique styles, quality fabrics and expert construction make for beautiful lingerie that all women love to wear. Iris & Lillyâs thongs and strings provide minimal back coverage and are designed to give a line-free look beneath fitted clothing. Breathable cotton styles feature elastic and lace trims for a comfortable everyday panty while microfiber styles are designed for a super-soft feel against your skin.