Muc-Off Foam Fresh All-Purpose Cleaner: 400ml Aerosol. Muc-Off Foam Fresh is a highly effective easy to use foam cleaner for helmet liners or any soft material which comes into contact with the rider. Foam Fresh has an instant foaming action which gently agitates dirt and grime away from the surface leaving a fresh Citric Burst fragrance. Even the cleanest looking riding gear benefits from this uniquely formulated product. Its awesome for use on pads gloves shoes liners and body armor.