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Sierra Designs Flex Capacitor 40-60

Sierra Designs Flex Capacitor 40-60

Lightweight hiking backpack with expandable volume and lightweight design.

Special Price €159.00

Regular Price: €179.00


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The opinion of Aventure Nordique

The Sierra Designs Flex Capacitor 40-60 is a lightweight, functional and well-designed backpack. It is a versatile carrying solution for hikers who want a backpack for multiple uses: hiking, trekking, mountain...

This backpack has an aluminium frame for a better carrying comfort. It is equipped with a padded back at the support points with the body, padded shoulder straps and a wide hip belt. It combines lightness and comfort.

The Flex Capacitor 40-60 features an intelligent design that allows you to vary the volume from 40 to 60 litres while maintaining a snug fit. Compression straps allow for increased storage capacity. This feature gives the Flex Capacitor 40-60 great versatility.

Accessories :

  • The bag opens at a zippered top flap with a zippered pocket for storage of small items.

  • The hip belt has large pockets for a phone, keys or a few cereal bars.

  • On the sides, 2 soft pockets offer additional storage space.

  • Inside, you can slip your own hydration system into a removable pocket (the passage for the supply hose is provided).

  • On the right shoulder strap, a soft pocket allows you to slip a bottle/gourd giving you direct access to your drink.

Technical details

Manufacturer Sierra Designs
Product name Flex Capacitor 40-60
Volume 60 l
Model Unisex
    • Fabric : 100D Nylon-Poly Ripstop/420D Nylon Oxford
    • Reinforcement : Y Flex DAC
    • Straps and belt : Mousse EVA


    Accessories Hydration compatible, Ice tool, Carrying handle, Compression straps
    Dimensions S/M : 70 x 28 x 25 cm - M/L : 70 x 28 x 25 cm
    Weight S/M : 1160 g - M/L : 1190 g
    Additional information
    • Expandable volume from 40 to 60 litres.
    • The length of the back is not adjustable. 

    Choice of size

    • Length of the back S/M: 44.5 cm (length of your torso between 41 and 48 cm)
    • Length of the back S/M: 49.5 cm (length of your torso between 46 and 53 cm)
    • Belt size S/M: 74 - 81 cm
    • Belt size M/L: 81- 89 cm
    Country of Manufacture Vietnam


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