Coast in comfort with Charge 2 sport bands. These water-resistant accessory bands are durable enough to handle your day, wherever it takes you. The Fitbit Charge 2 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 buckle. The Charge 2 classic band is sweat, rain and splash proof, but is not swim proof. We recommend taking it off before showering, as its best for your skin if the band stays dry and clean. Size: small. Size H19.5, W9.1, D2.2cm. Weight 90g.