Petzl Micro Traxion Pulley Active as are all external straps

as are all external straps to shave a few more ounces

Versatile with the ability to attach to a variety of other Osprey bags

Two zippered vents at the peak

and - that's right - it's built with sustainable materials

Aerospring™ Rebound foam for a comfortable ride

Petzl Micro Traxion Pulley Active as are all external strapsHigh efficiency, ultra light progress capture pulley The MICRO TRAXION is an ultra light (85 g), ultra compact progress capture pulley that is exceptionally efficient (91 %) thanks to its sealed ball bearings. The cam can be locked in open position so the device can be used as a simple pulley. Detailed description Description Ultra light and ultra compact progress capture pulley (volume and weight 50 % less than the MINI TRAXION) Sealed ball bearings