Nikwax BaseFresh is a deodorizing conditioner for all technical underwear and wicking clothing worn next to the skin. . Improves wicking, accelerates drying, improves cooling efficiency of all base layers. Removes and prevents odor build uprefreshes base layers by deodorizing and maintains freshness by preventing odor buildup when in use. Enhances and revitalizes wicking properties of base layers and everyday clothing, increasing breathabilityhelps fabric to spread sweat, dry quickly, and keep you more comfortable in all conditions. Improves resistance to stains and day-to-day soiling. Allows base layers to be cleaned with standard laundry using conventional detergents, removing the need for a separate wash. Allows the use of aggressive detergents and cleaners to remove stubborn stains, such as chain oil, without compromising base layer performance. Water-based, nonflammable, nonhazardous, biodegradable, environmentally friendly, and contains no volatile organic compounds. Once your base layer has been used a few times and starts to smell, clean it with a standard detergent in your regular laundry and use Nikwax BaseFresh to deodorise, freshen, soften, and enhance drying and cooling. Do not use on waterproof clothing.