The Junction 55 backpack from Hyperlite Mountain Gear is a premier pack designed to be ideal for ultra lightweight backpacking and thru-hiking trips of up to 5-7 days.  This pack is best suited for on-trail and light off-trail adventures, and is also great when compressed down for day hikes. The main bag fabric is an ultra lightweight Dyneema® composite that is virtually waterproof in most conditions with it's roll-top closure style design and seam-taped seams.  The bottom section of the pack uses a more durable lightweight Dyneema® composite fabric.  5 external pockets provide quick access to all types of gear.  The rear external mesh pocket is great for drying out wet clothing or gear as you go.

Details

• Dyneema® Composite DCH50 Main Fabric
• Dyneema® Composite DCH150 Pack Bottom Fabric
• Seam-Taping on All Vertical Side Seams and Behind All Sewn-On Pack Features
• Roll-Top Closure
  
• Top Y-Strap Compression Strap
• 4 Side Compression Straps
• Hardline with Dyneema^® Dual Density Hip Belt with 1/8” Closed Cell Rigid Foam, 1/4" Closed Cell Foam, and Spacer Mesh
  
• Hardline with Dyneema^® Shoulder Straps with 3/8” Closed Cell Foam and Spacer Mesh
• Daisy Chains on Shoulder Straps
• Two Removable Contoured Aluminum Stays
• Integrated 1/4” Foam Back Panel Pad
  
• External Center Back Mesh Pocket
• Two Solid-Panel Hardline with Dyneema® Side Pockets
• 2 Zippered Pockets on Hipbelt with Hardline with Dyneema^® Fabric and #5 YKK Zippers
• Internal 8" x 14" Mesh Hydration Bladder Sleeve
• Adjustable Sternum Strap with Self-Tensioning Elastic and Whistle
  
• Ice Axe loop
• Grab Loop
• Four Exterior Triglide Buckles for Optional Pack Accessory Strap Attachments
  
• Bar Tack Reinforcements
• Highly Water Resistant
• 4 Different Sizes to Fit Different Back Lengths

Weight for Size Medium: 2 lbs | 904 g

Load Capacity: Up to 40 lbs | 18.1 kg

Volume:

• Internal Pack Volume -  3400 cu. in. (55L)
  
• External Pocket Volume - 600 cu. in. (9.8L)

Dimensions:

• Back Width - 10.5 in (26.7 cm)
  
• Height Fully Unrolled - 34 in (86.4 cm)
• Top Circumference - 40 in (101.6 cm)
• Bottom Circumference - 33.5 in (85.1 cm)