"Thanks for mentioning our packs! Our patented articulating hinge is the biggest innovation in backpacks since the introduction of modern materials. The hinge is very robust, made from aluminum and steel components, yet light weight (no flimsy plastic here), with a sturdy mechanical locking mechanism. The pack swings effortlessly on the hinge, less than a second from release to having your stuff right in front of you. The bright green things mentioned in the article, are actually peaks at the fabric covering the backing plate. We feel that the design, which distributes the weight across your shoulders and hips, rather than just your shoulders, is superior to other designs on the market that attempt to solve the age-old problem of getting access to your stuff."