Flex Capacitor 60-80

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Expand your gear, extend your adventures

The lightweight backpack of your dreams is here. Meet the versatile pack that hauls it all. The Flex Capacitors is a beast of backpacking pack, constructed from durable nylon for rough conditions in the backwoods and built with adjustability in mind. Loosen the expanding horizontal gussets for an additional 15-20L of cargo capacity on longer backpacking trips, or cinch it tight for smaller, compact loads on fast summit days. Plus, ample quick-stash solutions on the straps, sides and bucket lid ensure there are plenty of places to store your mid- trail essentials. However, you pack it, the Y-Flex suspension adds support so this lightweight backpacking backpack can hit well above its weight class. Flex Capacitor Rain Cover sold separately. 


  • Expandable volume: 60L - 80L
  • Lightweight 'Y' Flex suspension
  • 20L adjustable volume to tailor both to extended backpacking trips or shorter day trips.
  • 2 Stretch mesh side pockets
  • 2 Stretch hydration pockets on shoulder straps
  • 2 large zippered pockets on waist belt
  • U-shaped top zippered access
  • Zip stash pocket in lid


  • 100D Nylon Honeycomb/420D Nylon Oxford

Tech Specs

  • Capacity: 60-80L / 3661-4882 in3
  • Weight (with M/L waist belt): 3 lbs 2 oz / 1.40 kg
  • Torso Fit: 18" - 21" / 46 - 53 cm
  • Hip Fit with M/L waist belt: 33" - 48" / 84 - 122 cm
  • Dimensions (H x W x D): 27.5" x 8.5" x 12" / 70 x 22 x 30.5 cm
  • Suspension: Lightweight 'Y' Flex 
  • SKU: 80710120