Zalando is launching a four-week pilot project to introduce reusable packaging for its customer deliveries. The Berlin-based online retailer will ship deliveries to 10,000 customers in Finland, Norway, Sweden and Denmark in envelopes that can be used for shipments as well as returns in a bid to reduce packaging waste and cut down its carbon emissions. With this initial pilot test, Zalando wants to see how widely the reusable packages can be integrated into its existing logistics processes. Under the project, Zalando will dispatch the returnable packages from its logistics center in Stockholm to customers, who return the packages by folding them up and mailing them with a return label. The packages are then delivered to a central location and allocated to a logistics center for reuse. The project's success, according to Zalando, will depend largely on customers' willingness to make changes to their behavior. Because the packaging needs to remain in circulation in order to be reused over and over again, Zalando customers will have to send back these materials even if they aren't making any returns. Still, a recent international survey suggests customers could welcome Zalando's initiative, as 83% of German and 67% of Finnish respondents said they are actively trying to reduce their everyday use of plastics. The Finnish startup RePack has already launched a similar pilot project with reusable packaging.