Features of the Icebreaker Women's Tech Trainer Hybrid Tight Hybrid construction with zoned woven overlay panels at front for core warmth and protection Zoned air permeable Pertex Quantum Air fabric for breathability and optimal comfort in all conditions Lycra content for stretch and mobility Contour waist for Fit and comfort Low profile single internal drawcord for adjustability Flatlock seams prevent chafing Tapered leg openin Gusset for comfort and mobility Zippered back stash pocket Icebreaker reflective heat transfer logo Fabric Details Main: 255gm terry, 46% Nylon, 38% Merino, 16% Lycra Overlay: 48gm Pertex Quantum Air 20 denier, 100% Nylon with DWR finish