Official Fitbit accessory designed to work with Fitbit products and tested for comfort and durability Made with Ultrafabrics Volar Bio, a USDA certified biobased product, and other vegan materials Indigo color makes for an unexpected basic with its elevated take on navy Band is sweat resistant; not water resistant Works with Fitbit Charge 5 and Charge 6 The sophistication of leather with the sustainability of biobased productsthis vegan leather band in a peaceful neutral is an innovative take on a premium style.