Kelty Siro 50 & Sira 45 Backpacks

• Body fabric: Nylon 66 330D Mini Rip PU
• Frame material: Steel & HDPE
• Shark's mouth top loading access
• Center front zip panel access
• Large stretch mesh front shove-it pockets with dual entry
• Stretch water bottle pockets
• Front, lower and side compression
• Dual trekking pole/ice axe attachments
• Secure-zip hipbelt pockets
• External hydration sleeve (Reservoir not included)
• FeatherFIT suspension
• Suspended back panel with integrated hipbelt
• Hex mesh backpanel, shoulder straps and hipbelt
• Load lifter straps
• Sternum strap

Kelty Siro 50

• Volume: 50 L (3100 cu in)
• Frame type: Internal
• Torso fit range (S/M): 16.5 - 18.5 in  (42 - 47 cm)
• Torso fit fange (M/L): 18.5 - 20.5 in  (47 - 52 cm)
• Dimensions: 27 x 13 x 10 in (69 x 33 x 25 cm)
• Optimal carry weight: 25 - 30 lbs  
• Weight: 3 lbs 1.5 oz

Kelty Sira 45

• Volume: 45 L (2745 cu in)
• Frame type: Internal
• Torso fit range: 15.5 - 17.5 in (39 - 44 cm)
• Dimensions: 26 x 12 x 10 in (66 x 30 x 25 cm)
• Optimal carry weight: 25 - 30 lbs  
• Weight: 2 lbs 13 oz (1280 g)