Best Buy: Fitbit Flex Wireless Activity and Sleep Tracker Wristband Black FB401BK
WoCase Fitbit Flex Wrstband 3D Edition Vibrant Pack of 4 Accessory Replacement Wristband Bracelet Band Pack (One Size, fits most wrists) with Clasps for Fitbit Flex Activity and Sleep Tracker (Retail Gift
Accessory Wristband with Clasp for Fitbit Flex Activity and Sleep Trac | WoCase Official Website