TerraPax bag materials are selected for their sustainability and minimum dependence on petrochemicals; their ability to be reaped for generations with little or no detrimental effects to the ecosystem. Essentially these are agricultural products that are produced organically. Our Hemp shell fabric is as durable as many synthetic nylon fabrics but does not have as many hidden costs associated with its manufacturing. in other words; it will carry your goods effectively through life without taxing the environment. Sure, it may cost a little more than a synthetic bag, but there is nothing to come between you and your outdoor experience. And if our economy is ever adjusted to reflect the actual cost of resources, TerraPax products will be one of the least expensive items you can buy.