The expanding SERE pack was designed by a SERE instructor to provide a pouch for survival kit and medical kit that can expand during evasion to use form a pack for carrying foraged items (edible plants, road kill, firewood, etc.). With the demand for Sensitive Site Exploitation (SSE) during counter-terrorism operation, this pouch gained an additional mission. The pocket is great for SSE kit items like rubber gloves and marking tags while the pack provides a comfortable way to transport evidence back to base camp. And troops on R&R found the third use as a travel pouch which can slide over a belt to hold a camera, phone and passport but expand to transport souvenirs and food bought in the local market. .