Drop 40L Backpack Designed by Dan Durston

• Designed by Dan Durston
• Material: VX21 and VX07 X-Ply fabrics
• Waterproof dimension polyant VX21 and VX07 materials
• 3 oz aluminum U frame and load lifters
• 8 mm foam back pad cushions between the load and the users back
• QuickPocket for rapid access to larger gear
• Versatile front pocket arrangement
• Dual hipbelt pockets
• Dual zipper accessed shoulder strap pockets 
• Frame and front pocket can be stripped to lighten the pack to 1.5 lbs (0.68 kg)
• Hydration ready
• Removable back padding
• 10 mm breathable EVA padding
• 2 large stash pockets on each side for water bottles (one with zippered pocket)
• Roll-top closure
• Daisy chains to attach gear on back
• Extendable and removable storage flap with additional zipper pocket
• Duraflex quality hardware
• YKK zippers
• Expandable volume with roll top
• Adjustable gear tiedown cords on side

S/M Pack

• Internal volume: 40L (30 + 10L)
• Weight: 31.4 oz (890 g)
• Weight (stripped): 26 oz (737 g)
• Weight, frame: 3.2 oz (90.6 g)
• Foam padding: 0.6 oz (17 g)
• Weight, front pocket (including shock cord): 1.6 oz (45.4 g)
• Torso length: 15–17 in (38.1–43.2 cm)
• Bottom circumference: 30.5 in (77.5 cm)
• Top circumference: 34.5 in (87.5 cm)
• Unrolled height: 32.5 in (82.5 cm)
• Carrying capacity: Up to 40 lbs (18.1 kg)

M/L Pack

• Internal volume: 43L (33 + 10L)
• Weight: 32.6 oz (925 g)
• Weight (stripped): 26.9 oz (763.4 g)
• Weight, frame: 3.5 oz (99.2 g)
• Foam padding: 0.6 oz (17 g)
• Weight, front pocket (including shock cord): 1.6 oz (45.4 g)
• Torso length: 17–20 in (43–51 cm)
• Bottom circumference: 30.5 in (77.5 cm)
• Top circumference: 34.5 in (87.5 cm)
• Unrolled height: 34.5 in (87.5 cm)
• Carrying capacity: Up to 40 lbs (18.1 kg)