Customers in the US often ask if it is possible to add zippers to the side gusset wrap for reuse. However, alternatives to traditional zippers may be more suitable. Allow me to introduce our side gusset coffee bags with tin straps as an option. We understand that the market has diverse needs, which is why we have developed side gusset packaging in various types and materials. For customers who prefer a smaller size, it is free to choose whether to use tin tie. On the other hand, for customers looking for a package with larger side gussets, I highly recommend using tin ties for reseals as it is effective at maintaining the freshness of the coffee beans.