Details, Size & Fit. Swim with The fish in The Nessa One-Piece from O'Neill. This second-skin swimsuit features a zip down The front, and silver and black mesh inserts on The sides. Our. model. iswearing a size 8 one-piece. Sheusually takes a Standard AU8 size, is 5’11” (181cm) tall and has a 61.5cmwaist. Fitted design Scuba fabrication Zip-down front Silver and mesh inserts on sides High neck.Hand wash. Do not bleach. fabric / material: NA.Material: 80% Polyamide & 20% Elastane.SKU: ON013AA33LYK.