The “Arc” within the Zpacks’ name originates from a novel tensioning method that pulls the center of your bag far from the back, encouraging airflow and alleviating the need for the foam backpanel. Breathability is among Dyneema’s shortcomings, so this can be a helpful structure for warm weather conditions and https://gunnerbeeeb.vblogetin.com/40003310/best-backpacking-backpacks-things-to-know-before-you-buy