Amazon.com : ONN Replacement Band for use with Fitbit Flex 2 (Mint) : Sports & Outdoors
Amazon.com: B-Great Ankle Band with Mesh Pouch for Men and Women Compatible with Fitbit Flex 2/Fitbit One/Fitbit Alta/Fitbit Charge 2 3 4/Fitbit Inspire HR 2 Fitness Tracker (Black, Small) : Electronics
Amazon.com: kwmobile TPU Watch Strap Compatible with Fitbit Flex - Set of 3 Fitness Tracker Replacement Bands : Everything Else
Amazon.com: Extender Band for Compatible with Fitbit Flex/2 Fitbit Alta HR Fitbit Luxe Fitbit Inspire 3 or Garmin Vivosmart 4 Watch Band, Band Extender for Larger Wrist or Ankle Wear (Black) : Electronics