simply double up your gaiter for an extra layer of insulation

and it can stand up completely unsupported

offering a wider range of uses

Attached adjustable hood that rolls into collar

FILL: 525 Fill Power White Goose Down

Osprey Exos Pro 55 Backpack Size:Medium/Large simply double up your gaiterNearly a pound lighter than the Exos 58 and featuring a more fine tuned adjustment system, the 55 liter Exos Pro is the most comfortable ultralight thru hike backpack in its weight class. A highly ventilated AirSpeed backpanel supports light loads with ease while maintaining maximum airflow across your back, making it an ideal pack for your most long distance endeavors on the Appalachian Trail, Pacific Crest Trail and beyond. Features Removable,