Abstract: A shock absorber designed for insertion within a container. The shock absorber presents a support surface on one side intended to contact the surface of one or more items contained within the container, and a spring side including compression elements, in contact with an interior surface of the container, intended to urge the support surface into contact with the items contained within the container. Use of the Shock absorber of the invention may eliminate the need for foam inserts or cushions, which can greatly reduce outgassing of anions or cations generally associated with foam. The container and shock absorber may be suitable for reuse and recycling.