Just the essentials. Streamlined and light, packable and efficient, the Heliad is sized right for lunch and a light windshell, some books and a tablet, or the things you want to carry on the flight and easily stash under the seat in front of you. You can wear it how you want with a longer adjustable strap - as a sling bag or waist pack - and the rectangular design maximizes usable space, is easy to pack, and gives it a clean, contemporary look.