IceFil - A cooling factor that is embedded in the fabric reduces body temperature by 5 degrees will provide maximum comfort in humid, hot weather. Movement generates air flow creating a cooling effect. Nanoplex - Microscopic nano particle attached to fabric fibers make these performance features long lasting. Not a fabric finish. Easy Care - Normal wash, quick drying, and no shrinkage. Odor Control - Our special wicking fabric helps control body odor.