Gi Spec Large Alice PackThe 5ive Star Gear GI Spec LC II ALICE Packs are made to the same specs as the original US military version with a rugged and durable nylon material. These backpacks are part of the U. S. military's system of all purpose, lightweight individual carrying equipment that has been the American standard since the 60's. The medium size can be worn alone or with the ALICE pack frame, but the large size can only be worn with the frame. Item is compatible with