The Sierra Designs Flex Capacitor 60–80L offers adjustable storage for trips with changing equipment needs. Horizontal gussets expand the main pack from 60 to 80 litres, while compression allows a smaller load to be held more closely.
A Y-Flex suspension provides the pack’s carrying structure. This Peat M/L listing uses 100D nylon honeycomb and 420D nylon Oxford, with a stated weight of 1.40kg when fitted with the M/L waist belt.
Storage includes two stretch mesh side pockets, shoulder-strap hydration pockets and two zipped waist-belt pockets. A U-shaped top zip opens the main compartment, and a zipped lid pocket gives another place for smaller items.
Twist lists a torso range of 46–53cm and a hip range of 84–122cm for this configuration. The Flex Capacitor rain cover is sold separately. Check the volume needed for your route and the fit of the loaded pack; an expandable capacity is most useful when the carrying system suits the wearer.
Explore Flex Capacitor 60L-80L at Twist Distribution.
Product information and image: Twist Distribution.
