Cotton fleece-backed jersey fabric refers to a type of material that combines the smooth, stretchy properties of jersey knit on the outer face with the soft, plush, and insulating qualities of fleece on the inner side. This fabric is commonly used in garments that require warmth without being too bulky, such as sweatshirts, joggers, or hoodies.

Here are the primary properties and care recommendations for cotton fleece-backed jersey:

1. Warmth: The fleece backing provides added insulation, making it warmer than standard jersey.
2. Stretch: The jersey knit aspect allows for stretch, offering comfort and flexibility.
3. Softness: The fleece side is typically very soft against the skin.
4. Weight: It's generally heavier than regular jersey fabric due to the added fleece.

Care Recommendations:
1. Washing: It's often best to wash in cold water to prevent shrinkage. Use a gentle cycle to maintain the fabric's integrity and softness.
2. Drying: Tumble dry on low heat or lay flat to dry. High heat can shrink cotton and can damage the fleece's plushness.
3. Avoid Bleach: Bleach can damage the fibers and alter the color of the fabric.
4. Ironing: If ironing is needed, it's recommended to use a low heat setting and iron on the jersey side, not directly on the fleece. Alternatively, use a pressing cloth.
5. Storage: Store in a cool, dry place. Avoid hanging heavy garments made of this fabric as they might stretch over time; instead, fold them.
6. Stain Removal: Address stains promptly. Use a gentle stain remover that is safe for cotton. Always check the garment's care label for specific recommendations.

Remember that, like with all fabrics, it's always a good idea to refer to the care label on the specific garment for the best advice on how to clean and maintain it.