The Fitbit Flex Classic Band is made of a flexible, durable elastomer material similar to that used in many sports watches, and includes a surgical-grade stainless steel clasp.
The Fitbit Flex Classic band is sweat, rain and splash proof, but not swim proof. We recommend taking the band off before showering because it’s best for your skin if the band stays dry and clean.
If the band gets wet or if you sweat in it, remove and completely dry the band before putting it back on. Give your wrist a rest by taking the band off every now and then. Learn more.