Greeninsync via Amazon offers a selection of GreenInsync Fitbit Flex 2 Replacement Bands, with prices starting from $3.99 via coupon code "955J6K6A", as listed below. Plus, Prime members bag free shipping. They're available in sizes S and L. Deal ends May 31. The bands, with prices after the above coupon: Note: Some options are only available when purchased with orders of $25 or more.