The care instruction label on our Mackintosh is as follows,
Care Instructions - Double Texture Cotton.
The fabric in this garment is 100% Cotton with a hi-Tech breathable waterproof membrane bonded between two cotton layers. It has been further treated with a shower repellent finish to dispel rain, to keep this garment easy care we have not taped the seams, therefore the seams are not guaranteed 100% waterproof, however we have satisfied ourselves that this garment will withstand the worst downpour of rain in general wear. To clean; Dry-clean or hand wash 30° with soap flakes, rinse thoroughly. Dry naturally on a broad hanger. Steam iron low heat setting. After cleaning reproof if necessary to maintain the shower repellent finish. Wash separately. Colours may lighten after cleaning. This is a product of Mackintosh Rainwear Ltd (Ireland) and should not be mistaken for any other similar products.
We don’t recommend machine washing, however the Double Texture Fabric used in our mackintoshes is in fact machine washable in a modern washing machine with a delicate or wool mark programme. The fabric won’t shrink nor delaminate, the colour may run but no more than would by hand washing. If the mackintosh was machine washed the pre-shrunk wool buggy lining may still shrink and any genuine leather buckles may begin to disintegrate. After washing a good rinse with plenty of cool water to remove residue will ensure an even colour, this can be done using the showerhead on even the garden hose. After rinsing its best to hang your mackintosh on a broad plastic hanger on a clothesline.
It’s not necessary to iron or restore the shower resistant finish as the mackintosh will remain waterproof because of the concealed waterproof membrane but leaks can occur at sewing points if the shower resistant finish has worn off. Iron the garment from the inside only, using a modern steam iron, which will have teflon-coated base to prevent surface shine. Remove any detachable items and iron separately. Pressure can be applied to any area where there is only one layer of fabric. Only light pressure or none at all should be applied to areas where there are folds or 2 layers of fabric especially at areas such as the front facing strip which has a double folded edge and pressure will cause an impression of the front, iron under the facing. Avoid pressure on any area with features such as front or back capes etc. The coat and sleeve hems may be ironed with pressure to ensure a crisp edge.
To reproof the shower resistant finish, visit your local camping supplies outlet and ask for reproofing for cotton clothing and follow the instructions. To extend the life of you mackintosh hang to dry in an airy place and ensure it is completely dry before long term storage.