Features of Icebreaker Women's Drayden Sleeveless Top Cool-Lite - A lightweight and breathable fabric blend Designed to wick moisture away from the body High crew neck Wide shoulder with micro cap sleeve Fabric Details Fabric Main: 150gmA^2 Cool-Lite Jersey, 60% TENCEL, 40% Merino Wool Fibre micron: Merino Wool 18.9 micron