Our bestselling 'Maelle' herringbone necklace is made from soft 18k gold over stainless steel that's flexible, allowing it to move fluidly and lay flat against your skin for a liquid gold feel. Wear it solo or layered it with similar styles from our waterproof collection. 18K gold plated stainless steel Waterproof & tarnish resistant Length: 16 or 18" + 4" extender, thickness: 3mm