Bodylastics offers free, standard ground shipping either through Amazon or our 3rd party fulfillment service. Both Amazon and the 3rd party warehouses automatically determine and assign the shipping provider based on the order address, size and available shipping providers once the order is processed into their system. Bodylastics does not have any control over which shipping service is used and does not know which provider will be used until the item actually ships and tracking is available. Amazon and our 3rd party fulfillment centers use all major carriers as well as smaller regional carriers depending on the location. You will be emailed the tracking number for whatever carrier is used once your order ships.