The Women's Midweight Stretch Long Sleeve Plus Top from Columbia is designed for cozy warmth for both on and off mountain adventures. This moisture wicking, quick-dry top is constructed with Columbia's Omni-Wick Technology and features Omni-Heat Thermal Reflective designed to trap heat for extra warmth during cold weather activities. 4-way stretch fabric allows you to move freely and ergonomic, flat locked seams keep you chafe free during extended wear. The Women's Midweight Stretch Long Sleeve Plus Top also features an antimicrobial treatment that protects your garment from bacterial growth keeping you fresh and ready when you ride. Omni-Heat Reflective Anytime Stretch Jersey - 85% Polyester/ 15% Elastane, Omni-Wick Moisture Wicking, Quick-Dry Technology, 4-Way Comfort Stretch, Antimicrobial Treatment, Ergonomic Seaming, Flat-Locked Construction, Fit: Tight, Warranty: Lifetime, Material: Synthetic, Weight: Mid, Type: Top, Wicking Properties: Yes, Recommended Use: Snow, Antimicrobial: Yes, Quick Drying: Yes, Moisture Wicking: Yes, Model Year: 2019, Product ID: 543173, Model Number: 1639023010 1X, GTIN: 0190540305236