Backpack Ventilation Frame UL1 (Original) Ultralight Backpack Ventilation Frames ensuring you stay cool and

ensuring you stay cool and comfortable on your outdoor adventures

Frame comes in one size (universal design)

Hyperlite Mountain Gear

5 ounces / 156 grams (with sleeve)

92 oz/yd Dyneema® Composite Fabric

Backpack Ventilation Frame UL1 (Original) Ultralight Backpack Ventilation Frames ensuring you stay cool andThe Backpack Ventilation Frame (Ultralight 1) is the easiest and lightest 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 dissipate heat and prevent clammy, soaked backs. This is our original design without a mesh sleeve to maximize airflow and ventilation on your back. If your backpack makes you sweat too much, this attachable