Backpack Ventilation Frame UL2 (Best Seller) Color:Green 2 ounces and easily attach

2 ounces and easily attach to your backpack to increase airflow on your back

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Backpack Ventilation Frame UL2 (Best Seller) Color:Green 2 ounces and easily attachThe Backpack Ventilation Frame (Ultralight 2) is the easiest way to give your backpack that ventilated back panel feel. This design uses our patented airflow frame concept to create an airflow gap between you and the pack, helping to dissipate heat and prevent clammy, soaked backs. This UL2 version is our best seller as it pairs our original ultralight ventilation with a mesh sleeve cover for added cushion. If your backpack lacks ventilation and