Expertly blending light weight, ventilation and comfort, the smallest of the Atmos line delivers a fully adjustable torso and suspension system for enhanced weight distribution and speed on the trail.

• Updated AirSpeed™ suspension offers fully adjustable torso length and adjustable hipbelt fit
  
• Shoulder harness adjusts over a 3 in. range for fine-tuned fit; new pad design with spacer-mesh contact surfaces and ventilated foam provides breathable, supportive cushioning
  
• Hipbelt uses dual-density foam for improved support and spacer mesh for breathability; exclusive adjustment system lets you customize the fit while wearing the pack
  
•  Hipbelt pads extend up to 3 in. on each side for 6 in. total adjustment range
  
• LightWire™ alloy frame creates low-profile air space, optimizing balance and ventilation; 3D tensioned mesh back panel ensures excellent breathability and supportive fit
  
• Large main compartment contains a hydration sleeve and reservoir clip (reservoir sold separately)
  
• Floating top lid features a large pocket and an under-the-lid mesh pocket
  
• Front stretch woven pocket, side stretch-mesh pockets, zippered hipbelt pockets and 2 large front zippered pockets help organize gear for quick, convenient access
  
• Pack exterior features removable sleeping pad straps, Stow-on-the-Go™ quick stash trekking pole attachment system and dual ice axe loops with bungee tie-offs
  
• The Osprey Atmos 50 Pack is made with a lightweight yet strong 210- and 100-denier fabric set that offers excellent durability and less trail weight than heavier fabrics