Creators of cool new HoverGlide concept claim its bungee cord and pulley suspension system reduces the impact of carrying a heavy load by up to 86%.
원문출처 : https://www.cnn.com/travel/article/hoverglide-floating-backpack/index.html
원문출처 : https://www.cnn.com/travel/article/hoverglide-floating-backpack/index.html