The Helly Hansen LIFA Insulated Short Sleeved T-Shirt is a must have in any active man's wardrobe. Crafted from 100% LIFA, a fabric based on a yarn technology that moves moisture away from the skin and transports it to the surface of the fabric, where it evaporates, leaving the wearer warm, dry and comfortable while also having a natural stretch for the best fit and boasting a lightweight insulation for warmth. Featuring flatlock seams for maximum comfort this t-shirt is the perfect base layer for your adventures. Whether you're hiking, biking or climbing don't leave home without this revolutionary top.