Band Compatible device type: Activity tracker Fitbit Material: Aluminium, Elastomer Blue, Grey 1 pc(s) MaterialsThis classic band is made of a flexible, durable elastomer material similar to that used in many sports watches, and includes an aluminum buckle.Water ResistanceThis band is rain, sweat and shower proof, but not swim proof. Rinse and dry your Alta HR after showering because its best for your skin if the band stays dry and clean. Please note: Alta HR tracker is not shower-proof.FeaturesThe Alta HR classic band is one of the only products on the market designed specifically and tested rigorously for heart rate tracking with Alta HR. Heart rate tracking may not work with other accessories.CareIf this 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. Features Material Aluminium, Elastomer Compatibility AltaAlta HR Brand compatibility Fitbit Product colour Blue, Grey