Each of these pockets are sewn with a pass-through behind, allowing you to tuck extra gear between the pockets and the pack. Two adjustable backpack straps of nylon webbing with metal d-ring and snap clip attachments allow you to carry the case just like a book bag - perfect for a "go-bag" for survival gear or a quick-response medical "grab-and-go" pack. Would even work great for packing skivvies, t-shirts, and toiletries for a short vacation or as a unique carry-on bag on your next flight. The pack also has two additional equipment straps for securing extra gear, or attaching the pack to a 3-day pack, vehicle, or wall, etc. New, military issue item. Don't miss this chance to complete your kit.