This jacket is built for functionality in cooler conditions, featuring black/white ribbed shoulders and cuffs, a full front zipper, zippered hand pockets and a zippered left chest pocket for secure storage. Material: Heavyweight 100% polyester bonded fleece. This robust fabric is built for warmth and designed to endure regular wear in colder settings. Temperature Range: Engineered for optimal use between 20-60°F. Weather Conditions: Effective in dry, windy, and light precipitation environments, providing consistent comfort. WarmSkin® Technology: This innovative fabric is activated by moisture to form an insulating thermal layer between the fabric and skin, locking in warmth. Fast-drying microfibers work in tandem with specially designed microfilament hairs, creating an adaptive warmth barrier that adjusts to the body’s needs on the diamond. Moisture System Transference (MST): MST technology enhances moisture wicking, pulling sweat away from the body and dispersing it efficiently across the fabric surface. This unique yarn knit pattern maximizes moisture movement, ensuring quick drying and steady temperature regulation to prevent overheating or discomfort. Antimicrobial Fresh Technology: A proprietary nanotechnology process embeds antimicrobial particles into the fabric, offering powerful odor resistance that remains effective through numerous machine washes. This treatment ensures the jacket stays fresh, even with extended or repetitive use.