Using hybrid mapped construction, the Outdoor Research Deviator Hoodie provides lightweight core warmth and incredible breathability with Polartec Alpha insulation. Polartec Power Grid fabric at the back, sleeves, and hood allows stretch mobility, manages moisture, dries fast, and enhances breathability.. . . . . . . Front and side panels: 7D nylon ripstop fabric, lightly insulated with Polartec Alpha synthetic insulation for core warmth. Polartec Alpha synthetic insulation provides lightweight, fast drying, compressible warmth and circulates airflow around the torso for incredible breathability. Back, sleeves, and hood: Polartec Power Grid polyester and spandex fabric wicks moisture, enhances. breathability, dries fast, offers stretch mobility, and increases warmth with grid channels . Body lining: Polyester stretch mesh for breathable, moisture wicking comfort against the skin. Lightweight, breathable, quick drying, and moisture wicking. Polygiene active odor control to keep you feeling fresh. Attached hood. Thumb loops for hand warmth. Chest pocket with zip closure dual handwarmer pockets . Full length center front zipper. DWR treated zippers for water resistance. Hem drawcord inside pocket key clip inside pocket . Flatlock seam construction prevents irritation and rubbing. Trim fit center back length: 27.75 in. .