Got a pair of these off eBay (different seller), and they are nice: https://www.ebay.co.uk/itm/New-Shimano-PRO-Vibe-Road-Bike-Handlebar-Drop-Bar-31-8mm-x-40cm-Compact-fits-Di2-/273116820506
@Hmjb started
London Fixed Gear and Single-Speed is a community of fixed gear and single-speed cyclists.
@Hmjb
Got a pair of these off eBay (different seller), and they are nice: https://www.ebay.co.uk/itm/New-Shimano-PRO-Vibe-Road-Bike-Handlebar-Drop-Bar-31-8mm-x-40cm-Compact-fits-Di2-/273116820506