Osprey Exos Pro 55 - Mens Pack Size:Small/Medium Testing standards: independently tested by

Testing standards: independently tested by a certified laboratory to meet or exceed NSF/ANSI protocol 42 and 53 for pathogen and chemical removal

top off with air for personalized firmness on 2 in (5 cm) of StrataCore loft

ensures improved penetration

Do not iron

Keep your pack light but still have your coffee out on the trail

Osprey Exos Pro 55 - Mens Pack Size:Small/Medium Testing standards: independently tested byThe most comfortable ultralight thru hike backpack in its weight class Overview Nearly 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