Omni-Heat Technology: Retains warmth using silver dots that reflect body heat, keeping you comfortable in cool temperatures Omni-Wick Fabric: Pulls moisture to the surface for fast evaporation, ensuring next-to-skin comfort in warm conditions 4-Way Comfort Stretch: Provides full range of motion and a perfect fit for all-day wear Ergonomic Seaming & Flatlocked Construction: Enhances comfort and durability, reducing irritation and chafing Thumb Holes & Crew Neck: Offers easy on/off and a classic, versatile look Experience comfort and performance with this Columbia Men's Midweight Half Zip Omni Heat Top. This black, solid-colored, long-sleeved shirt features a modern, sporty casual style with a crew neck and band collar. It's designed for men, with a regular fit and standard length, perfect for all seasons. The shirt is made from a stretchable, 100% cotton fabric, ensuring both flexibility and durability. Key features include a zipper closure, no pockets, and a thermal-reflective, breathable lining that retains warmth using silver dots, keeping you comfortable in varying temperatures. The Omni-Wick technology pulls moisture to the fabric's surface for fast-drying, next-to-skin comfort. Additionally, it captures and neutralizes odor for long-lasting freshness. Machine washable for easy care, this shirt is ideal for walking and vacation wear. Size: Medium (US), fits men with a regular body type and height.