One Planet Styx

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Well featured with easy access to your gear for weekend to week long trips.

The Styx is the perfect size for weekend escapes. It’s big enough for longer trips if you forego a few luxuries, while the Exact Fit harness gives comfort under heavy loads. The dual compartments allow access to your sleeping bag without unpacking.

  • Exact Fit harness provides unparalleled carrying comfort
  • Eight harness sizes available to refine the fit, including a specific women’s model
  • Dual compartments give easy access to your gear
  • Waterloc® canvas material (390 gsm)
  • Canvas-bound seams
  • Pack base and high-wear areas are reinforced with 1000-denier nylon
  • Generous front pocket for rainwear, first aid and munchies
  • YKK zippers
  • Lid pocket with key clip
  • Dual, easy-reach water bottle pockets
  • Extendable floating lid
  • Mat attachment buckles
  • Tent pole/snow stake/wand pockets
  • External and underlid compression straps

The Exact Fit harness is the only choice for many outdoor professionals. Available in eight fits and three back lengths, there is a combination to suit every body. The hand-shaped alloy frames, contoured shoulder straps, and heavy-duty load-bearing hipbelt will not distort even under extreme loads. The women’s harnesses feature specially sculpted hipbelts and shoulder straps to better match the female form. So whether you’re shaped like Elle Macpherson or your mum, with a One Planet rucksack you’ll get a comfortable fit.

Adjustments to the back length, shoulder straps and hipbelt are easily made while the pack is on your back, so the harness fits exactly, all of the time.

Limit of comfort: whatever you can handle!

For further details of all harness components see our technical information page.


Back lengths

The length of your back needs to be matched by a pack with a suitable frame length.
One Planet packs with the Exact Fit harness are available in three frame lengths: short, medium and long. As a general rule, most women have a short or medium back length, while most men have a medium or long back length. It can be difficult to measure your back length accurately: it is a good idea to visit a One Planet dealer to obtain a perfect fit.

All One Planet dealers are trained in measuring and fitting our harness systems, enabling an Exact Fit. We can even mix-and-match harness components to get it right. It’s just another benefit of making our gear in Australia.

The Exact Fit Harness is endorsed by the Chiropractors’ Association of Australia.



Waterloc® canvas (approximately 390 gsm). A tough, waterproof fabric developed in Australia specifically for One Planet rucksacks. The yarn has a polyester core wrapped in cotton: the core gives the fabric strength, while the cotton expands when moist, filling any microscopic holes and providing superior waterproofing. Waterloc canvas is tightly woven and impregnated with rot inhibitors and waterproofing agents to ensure waterproofness and longevity.

Most pack wear occurs through abrasion so we use Waterloc grid for increased strength. However, we’ve kept the surface smooth: the raised profile of traditional ripstop grids mean the prominent threads get clobbered, creating premature wear.


Brand One Planet

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