Smittys Compression gear comes standard with ComfortTECH 100 fabric treatment for durability and comfort. The moisture wicking properties ensure that you'll be comfortable on the coldest or hottest of days. Please note: According to industry regulations compression gear can not be returned for any reason once the package has been opened. Please see the sizing chart below to help you pick the correct size. If you are between sizes, we recommend you go up to the larger size.