Excellent Osprey Kestrel 38L Men's Small/Medium Backpack! Used this for a trip to Peru and the hike into Machu Picchu. Clean, like new, original owner. Men's small/medium. I'm a 5'10" female and this pack fit me the best compared to the women's sizing. Purchased at REI. Pet free/smoke-free home. Durable workhorse rucksack for rugged environments or outdoor professionals. The Kestrel 38 is perfect for quick overnights or big days out that don’t call for quite as much room, the Kestrel is a workhorse built with rugged fabrics that withstand punishing days in the backcountry. Ideal for bushwhacking through dense woods or for outdoor professionals who need a pack they can depend on in any condition. The adjustable backpanel helps you dial in your perfect fit and AirScape ventilation makes hot days more bearable. Breathable AirScape ridged foam backpanel with adjustable torso length Fixed top lid with external zippered pocket and under lid zippered mesh pocket Dual tuckaway ice tool attachments External reservoir sleeve Dual upper reverse StraightJacket side compression straps Zippered hipbelt pockets Integrated removable raincover Stow-on-the-Go trekking pole attachment in