What Our Gearhead(R) Experts Are Saying: "The Stratos 44 is my go-to for overnight trips and big day hikes. The AirSpeed suspension keeps air flowing so I never overheat, and I love that it fits like a custom pack with all the adjustment points. It's built tough but carries like a dream, even with a full load." For hikers who like to go the distance, the Osprey Stratos 44L Backpack delivers a balance of durability, ventilation, and trail-tested comfort that keeps us moving with confidence. Its AirSpeed(TM) suspension system combines a 3D-tensioned mesh backpanel and injection-molded frame to create a breathable, supportive carry that feels lighter mile after mile. The 44-liter capacity offers enough space for light overnight trips or gear-heavy day hikes, with a top-loading main compartment complemented by side and lower zip access for total convenience. Thoughtful storage-from dual hipbelt pockets to a hidden vertical side pocket-keeps essentials within easy reach, while trekking pole and ice axe attachments add adventure-ready functionality. Built from recycled, bluesign(R)-approved nylon with a PFAS-free DWR finish, the Stratos 44 is tough on the trail and gentle on the planet. Whether the day ends at camp or the trailhead, its integrated rain cover, adjustable fit, and premium suspension system ensure a smooth, dry, and breathable journey every time.