Here's one highly functional mid-layer shirt! It traps the air warmed by your body, stretches perfectly with your movements, and the smooth surface material not only withstands wear and tear but also offers more wind protection than regular fleece. The Modulus Pull-on shirt uses two technical materials: Thermic Stretch Pro fleece is woven, not knittedthanks to this, the material provides better wind protection and is more durable. It traps the air warmed by your body while also wicking moisture away from your skin. Flexile 200 is a highly stretchy, durable knitted material made from nylon and elastane. It feels very soft, comfortably warm, and stretches excellently with your movements. - Body-hugging fit - Thumb holes at the cuffs - Half-length zipper for ventilation - Zippered chest pocket, zippered sleeve pocket - Main material weight: 230g/m² - Additional material weight: 200g/m²