... strap. • Hydration system drink tube exit hole on top of the backpack. • Strap and clip around the backpack, able ... the arms on the shoulder. We offer some of the highest quality military backpacks. We offer vintage, water resistant, wheeled travel ... to carry equipment, books, luggage, and everyday essentials. A favorite of students, ROTC, military personnel, campers, bicyclist, hikers, fisherman, ...