Prepare your garments: Turn your jacket inside out, close all zippers, and empty pockets. This will help protect the jacket's delicate fabric and ensure that zippers and pockets are not caught or damaged during cleaning.

Read the care label: Before you start cleaning your insulated jacket, always check the care label. This will provide you with specific instructions on cleaning and caring for your jacket. The care label can be found on the inside of your jacket. Look for a small pouch that can be turned inside out on the lower left side.

Spot clean as necessary: If your jacket has a small stain or is just a little dirty, spot cleaning may be all that is necessary. Use a damp cloth and a mild detergent to gently rub the affected area. Be sure to rinse the area with clean water and allow it to dry completely before wearing the jacket again.

Machine wash with care: If your jacket requires a deeper clean, you can machine wash it. Use a front-loading washing machine, as top-loading machines can damage the jacket. Use a gentle, cold water cycle and a mild detergent. Do not use fabric softener or bleach. After the wash cycle is complete, run an additional rinse cycle to remove any detergent residue.

For down-insulated jackets, tumble dry on low heat with a couple of clean tennis balls to help fluff up the down fill. Be patient and avoid setting the dryer to a higher heat, as this can damage the fabric and the down fill. Check the jacket periodically during the drying process to ensure it is not overheating or becoming too dry.

For synthetic-insulated jackets, tumble dry on low to medium heat, also with clean tennis balls to help maintain loft. Synthetic insulation generally dries faster than down, but still ensure the jacket is completely dry before use.

Store properly: When you are not wearing your jacket, store it in a cool, dry place. Avoid folding the jacket as much as possible, as this can compress the insulation and reduce its insulating properties. Instead, hang the jacket on a hanger or lay it flat.

For down jackets — avoid exposure to extreme heat: Do not iron or dry clean the jacket, and avoid exposing it to direct heat sources, such as radiators or fireplaces. Extreme heat can damage the down fill and the fabric of the jacket.

For synthetic jackets — care instructions: While synthetic insulation is more resilient to heat than down, it is still advisable to avoid high heat sources. Do not iron or dry clean the jacket to maintain its integrity.

Washing: You can wash your shell jacket in a washing machine on a gentle cycle using a mild detergent. Avoid using bleach, fabric softener, or any products containing chlorine. It is recommended to use a front-loading washing machine, as they are less harsh on clothes than top-loading machines.

Drying: After washing, hang the jacket to air dry or place it in a dryer on a low heat setting. High heat can damage the DWR coating, so avoid using high heat to dry the jacket.

Ironing: Avoid ironing the jacket, as the heat from the iron can damage the DWR coating. If you need to remove wrinkles, use a steamer instead.

Storage: Store your shell jacket in a cool, dry place.

Reapplying DWR: Over time, the DWR coating on your jacket may start to wear off. To restore its water-repellent properties, you can apply a DWR spray or wash-in product.

Clean the jacket: Before applying the new DWR coating, make sure that the jacket is clean. Follow the washing instructions listed above.

Choose the right DWR product: There are two types of DWR products available: spray-on and wash-in. The spray-on product is easier to use and is suitable for small areas. The wash-in product is better for larger areas and can be used in the washing machine.

Apply the DWR product: If you are using a spray-on product, spray the coating evenly on the jacket's surface from a distance of around 15 cm (6 inches). Be sure to cover all areas of the jacket. If you are using a wash-in product, add the product to the washing machine during the rinse cycle.

Let the jacket dry: After applying the DWR coating, let the jacket dry completely. It's best to hang the jacket in a well-ventilated area and allow it to air dry.

Test the jacket: Once the jacket is dry, test the water repellency by splashing water on it. If the water beads up and rolls off, then the DWR coating has been successfully reapplied. If the jacket absorbs the water, then the coating may need to be reapplied.