The basics Clear Elastic retains memory, is soft and durable, won't rub or chafe skin, and is resistant to bleach and perspiration.  The benefits It is 2/3 thinner than regular elastic, stretches to 3 times its original length, is washer and dryer safe, and is dry cleanable. The uses It can be used in swimwear and activewear, or as a stabilizer for seams in knit garments. The bottom line This lightweight clear elastic is thin, soft,with plenty of stretch. Fiber content 100 percent polyurethane.