Bonfus
Bonfus Framus 58
The Bonfus Framus is a 58 L framed pack at 26.6 oz, built in Challenge Ultra 200X -- a non-woven laminate with UHMWPE fibres that is effectively waterproof and extremely tear-resistant. Its weight-to-volume ratio is among the best of any framed pack here.
Price and availability on Bonfus’s site may differ.
Specifications
What do these specs mean? →Features
Pros
- ✓26.6 oz for a framed 58 L pack is an outstanding ratio, beating the Kakwa 55 and Mariposa 60.
- ✓Challenge Ultra 200X is a waterproof non-woven laminate, not a coated weave, so it does not wet out.
- ✓Two shaped aluminium stays are removable, so the pack can be stripped further for light trips.
- ✓58 L handles a bear canister and a long food carry, unlike the 37-40 L frameless options.
- ✓EVA foam backing adds comfort without much weight.
- ✓Taped seams throughout, which is rare even in this segment.
- ✓Undercuts the Zpacks Arc Haul Ultra by $30 while offering 8 L more volume.
- ✓Hipbelt pockets included.
Cons
- ✗$369 is expensive, and Bonfus is a small European operation with limited US support.
- ✗Ultra 200X is abrasion-sensitive at the folds despite its tear strength.
- ✗No published maximum load figure.
- ✗Lead times can be long and stock is intermittent.
- ✗Warranty terms are not published in the way major brands publish them.
- ✗The laminate is difficult to field-repair compared with a woven nylon.
- ✗No adjustable torso; sizing must be chosen correctly at purchase.
- ✗Limited retail presence means trying one on before buying is unlikely.
Common Questions
Compare the Bonfus Framus 58
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