
Bonfus
Bonfus Aerus 55L
Bonfus gives the Aerus 55L a ventilated back: a tensioned mesh panel stands off a curved 7075 aluminium frame braced with four carbon-fibre cross elements, the trampoline layout normally found on much heavier packs. Total volume is 55 L (47 L internal plus 8 L external) and the medium weighs 795 g in Ultra 200X. It is rated to 33 lb.
Specifications
What do these specs mean? →Features
Pros
- ✓One of very few ultralight packs with a true suspended-mesh ventilated back.
- ✓795 g in the medium is light for a framed 55 L with that suspension.
- ✓Ultra 200X body with taped seams sheds water well.
- ✓Three torso sizes and two hipbelt lengths.
- ✓Bonfus publishes a clear 33 lb load rating.
Cons
- ✗$389 is among the highest prices for a 55 L ultralight pack.
- ✗Hipbelt pockets are a $27-each extra.
- ✗33 lb is a lower ceiling than some framed 55 L rivals that carry 35-40 lb.
- ✗A trampoline back pushes the load away from the spine, which can feel less stable than a contact back.
- ✗No stated hydration sleeve or bear-canister fit.
Compare the Bonfus Aerus 55L
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