The Porta Brace SP-1B Sack Pack Small (Black) is a tote bag used to carry miscellaneous accessories of all kinds. It is as handy and simple to use as a shopping bag but with all the extra advantages of a well constructed case. The sack has two slip pockets, one on the front and one on the back. It is constructed of a double layer of 1000 denier Cordura, and foam-padded bottoms. There is a cinching cord around the top edge that provides a tight seal.