Core Concepts Men's Stripes Half Zip Sweater wool-blend Italian tech wool blend fabric Weighs less & dries quicker than standand wool Shelter Stretch Shell panels at shoulder & forearm are wind and water proof Italian Tech Knit: 43% Wool, 38% Polyester, 16% Nylon, 3% Other Imported 43% Wool;38% Polyester;16% Nylon;3% other Ultra soft Italian sweater knit Shelter Stretch active shell is on the forearms ans shoulders for weather and abraision protection Wind resistant China