Men's Exos Pro 55L Ultra-Light Pack Color:Dale Grey/Agam Blue X-Small: Fits a 15 to

X-Small: Fits a 15 to 30-liter pack

for the longer races

Modeled after a surfer's “rash guard” this form-fitting layer keeps you toasty without being restrictive

When the weather turns wet

Men's Exos Pro 55L Ultra-Light Pack Color:Dale Grey/Agam Blue X-Small: Fits a 15 toNearly 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,