HIGH-PERFORMANCE FABRIC: Fleece mens thermal long sleeve shirt is crafted with the right blend of polyester and spandex. 92% of ultra soft polyester offers durability and 8% spandex allows for 4-way stretchability. Fleece lining and robust stitching around the seams prevents premature ripping and tearing. WEIGHTLESS WARMTH: Get comfortable warmth that never weighs you down. Thermal shirt perfectly sit under your clothing without disrupting your style. Incredibly warm yet surprisingly light, compression baselayer feels almost like a second skin, you will feel its presence only by the warmth it delivers. FOUR WAY STRETCH DESIGN: Unique knitted pattern and poly-spandex composition increase the stretchability of thermals for men Fleece lined thermal top naturally stretches with your body, thus offering full mobility and freedom of movement. RETAINS THE HEAT: Don??t wear bulky multilayered jackets, our super warm thermal long sleeve men is all you need to bare the winter chills. The ultra-fine polyester fibers and closely knitted seams block the body heat loss while the long sleeves work as an added layer of insulation. COMFORT DRIVEN DESIGN: Moisture management technology of the thermal men wicks away the cold sweat to avoid any sticky feeling. Seams are strategically positioned to eliminate chaffing at friction points and the tagless construction avoids any skin discomfort or irritation.