on the nap stored within the storage device a second seal or insert can be employed to be positioned within the opening defined by the recesses referring to fig4 5a seal embodiments 90 and 98 are illustrated the seals 90 and 98 are sized to be positioned within the opening to form a seal to minimize the seepage of air and moisture inserts can include a u shaped groove 100 that is sized to receive a ledge of the recesses or the inserts may not include a ledge the seal can further include a handle such as an attached yarn to aid in removing and positioning of the second seal in fig5 the seal 98 is cork shaped the seal can be made of any number of suitable materials such as polymers rubber or the like as examples a number of embodiments of the invention have been described nevertheless it will be understood that various modifications may be made without departing from the spirit and scope of the invention for example referring to fig7 a storage device is shown having projections 52 that are sized to penetrate an outer surface of the nap 120 in some cases the projections 52.