Fleece jackets are lightweight, warm outerwear made from synthetic materials, primarily polyester. They are designed to provide insulation while being breathable, making them ideal for outdoor activities like hiking and camping. Fleece is known for its soft texture and ability to wick moisture away from the body, keeping wearers comfortable in various weather conditions. These jackets come in various styles, including zip-ups and pullovers, and are often used as layering pieces. Many fleece jackets are also available in eco-friendly options, made from recycled materials. Popular brands like Patagonia and The North Face offer a range of fleece jackets suitable for different climates and activities.