Osprey ThruLite Pro 55

Features:

5.5 mm 7075 aluminum LightWire U-frame allows torsional
movement while creating a load support structure

 + Molded Atilon framesheet reinforces backpanel, adds main
compartment structure and helps distribute weight
AIRSCAPE BACKPANEL

 + Mesh-covered ridged foam (60% recycled EVA) provides
stable, close-to-body load carry, cushioning and ventilation
HARNESS

 + Highly ventilated, vest-style harness distributes load broadly
for stable support and lasting comfort

+ BioStretch seams offer maximum flexibility without
sacrificing stability for dynamic body movement

 + Load lifters fine-tune the load position to improve balance,
posture and load transfer

 + Adjustable, lightweight sternum cord improves load control
HIPBELT

+ Padded, supportive, adjustable hipbelt anchors to the
frame for excellent load transfer

+ Crossbody ErgoPull hipbelt system ensures snug fit for
optimal stability and load transfer off should

 + Adjustable torso length system offers 4 of adjustability to deliver a
precise fit for maximum comfort and efficiency

 + Removable modular top lid offers volume flexibility for different trips or after resupplies 

+ Modular top lid also attaches to the front of harness for use as a chest 
rig, or to hipbelt for additional quick-access storage

 + Lid features top lash points and a zippered compartment with key clip
for phone, fuel and small essentials

 + One zippered pocket and one drop-in stretch pocket on hipbelt keep
snacks, phone or other small items handy

 + Upper side compression straps with quick-release buckles stabilize load

 + Lower side V-compression straps stabilize load and connect to hipbelt for efficient load transfer

 + Lower side V-compression straps can be configured under or over side
pockets

  + Removable top compression strap secures load further 

 + Removing top lid reduces total volume by  6 liters (ThrULite Pro 55)