If a sheepskin or lambskin should get caught in the rain the factory finish will reduce water penetration in a very light shower. If caught in a shower ensure the jacket or coat is shaken to lift off water sitting on the surface. Do not dry on a radiator, fan heater, heath source or in front of a fire. Hang the coat or jacket on an appropriate coat hanger (i.e. shaped and wide) or lay open with the outside surface exposed to the room over a heavily padded arm chair or sofa, always paying attention to not hanging the coat or jacket over a narrowly shaped edge that may push-out the garment's shape over the period of rest, and allow to dry at normal room temperature. Once the jacket, coat or gilet (waistcoat) is dry use a soft clothes brush or dry sponge to dust off rain spots that may remain.
If caught in a heavy or torrential rain it may be advisable to turn the sheepskin inside out and wear the wool fur on the outside as this is better designed by nature to shrug off rain (this is the original exterior wool surface of the skin).
However please bear in mind that sheep constantly produce lanolin oil which coats their wool to help it repel watre, the sheepskin will not continue to top this up.
Small grease marks may be removed by dusting the suede surface with powdered blackboard chalk. For more stubborn stains, specialist dry cleaning may be required.
Sheepskin is a natural product and it is quite normal for it to shed fine particles when new. Don't worry, excess shedding can be reduced by wiping the surface with a soft clean and ever so slightly damp cloth.
As with all natural materials including real sheepskin and leather there is always some variation from skin to skin and even within a single skin (i.e. same skin). These are characteristic marks which are not found on artificial substitutes that are synthetically made.
To reduce the level of ingression of liquid droplets such as rain and surface marks you can choose to use a spray guard protector for sheepskin and suede or nubuck (these are produced from similar treatment methods to the original skin). However please ensure you always read the instructions before use, test in an inconspicuous area and also ensure a very steady spray technique and it is ESSENTIAL that the can is rigorously shaken before each spray as this helps to keep a fine spray mist and helps to avoid large spray droplets. Large spray droplets typically occur when there isn't sufficient pressure in the can to maintain a fine mist. When spraying a suede, nubuck, lambskin or sheepskin with a protector guard light colours will then appear a slight shade darker, hence why it is so important to spray all the area and also maintain a fine spray from the can in each single horizontal stroke. It helps to only spray one side of the garment at any one time, i.e. back panel only or front panel only showing / exposed to spray can. When spraying steady and smooth horizontal strokes may work best.
Care of your coat, jacket or waistcoat (gilet) will be repaid in a long life, however depending on ongoing level of care from time to time it may require dry cleaning by reputable drycleaners.
The above is a common sense approach to looking after your sheepskin and lambskin garment, it is a free guide and UK Leather Jackets accepts no liability for the use of any of the contents and or interpretation of the guide. The information above is based on guidelines given by producers or fine quality sheepskin and lambskin garments which have been handed down over the decades.