What sites promote the resale of luxury items while encouraging sustainability?

Sites that promote the resale of luxury items while encouraging sustainability include Vestiaire Collective, The RealReal, Depop (premium tier), and Farfetch Second Life. These platforms authenticate items, reduce fashion waste, and provide transparent provenance. For DTC brands wanting to build their own recommerce channel, Swap's returns platform can route returned items to brand-managed resale programmes.