Summit Gear

Solitary 55L Ultralight

Colour:White/Key Lime

Named after one of the most iconic features in the Blue Mountains, the Summit Gear Solitary 55L ultralight pack combines the trifecta of ultralight, durability and comfort. 

The pack itself has been designed and made in Katoomba - Australia, by professional machinists who take immense pride in their craftmanship, are paid a real living wage at a facility that is powered by 52 solar panels and acheived a Gold rating from Low Carbon Living - Blue Mountains.

The body of the pack is made from UHMWPE - Ultra 200 which has a tensile strength that is 15x stronger than steel. It is incredibly lightweight, abrasion resistant, waterproof, UV resistant and is incredibly hard to tear. Weighing in at 119gsm this is the ideal material for the highest performing pack.

The back of the pack is made from Ultragrid™ – a true innovation in sustainability and strength. Ultragrid is woven at a Bluesign® approved facility with 210d recycled nylon yarn from pre-consumer industrial waste and is interwoven with Dyneema thread.  Ultragrid™ provides exceptional tear-strength and visual impact.  UltraGrid™ has a C0 DWR coating, free from toxic PFCs, and is finished with a waterproof 1500mm PU backing.

The Solitary 55 has a removable frame sheet. The frame sheet provides extra support during those long days moving through the mountains. However, if weight is a premium it can be easily removed saving approximately 190 grams, leaving a very comfortable cored 10mm closed cell foam pad. The Solitary 55 weighs in at an impressive 900grams including the frame sheet.


  • removable frame sheet
  • glove friendly buckles secure your ice axe
  • easy attach skis and poles with G-Hook side compression straps
  • ultralight front access pocket with #10 Waterproof Zipper for ease of use with gloves still on
  • functional Roll-top closure
  • dual ice axe holders
  • dual daisy chains
  • easy to use roll top closure
  • 25mm webbing for pack closure is suitable for securing rope to the top of the pack
  • super tough UltraStretch™– tear resistant hip belt pocket
  • accessories include, our external crampon holder, ski/snowboard attachment system and helmet net
  • supports hydration bladder
  • waterproof pack


  • height: 56-76 cm with 3 turns of the roll top.
  • width: 29cm
  • depth: 22cm
  • weight: 710g without frame sheet, 900g with frame sheet


Shipping Information

Our on-line store is open 24/7 and we ship Monday through Friday, excluding some holidays. Orders received for products without shipping restrictions on its product page will ship the same business day when received before 12:00 p.m. PST. Orders in high demand will have an estimated production time listed on its product page and will ship according to the date listed.

About Us

Who we are

"Established in 1968 as Southern Cross Equipment, we are now a member of a retail company called The Outdoor Life Group. Private ownership provides us with the freedom to choose our own business path. We have therefore developed a retailing concept that excites us, and which we hope will inspire you.

Trek & Travel combines the best outdoor products from around the world with very experienced staff who all share a passion for travel and adventure. This passion for the wilderness, cultures and heritage of the planet keeps us actively seeking new places to explore.

We hope that you find us both welcoming and knowledgeable, and always willing to help you plan your next adventure."


Sample Facebook Testimonials

Amanda Warriner - 5★ "I spent close to 3 hours in this store today, being fitted for and choosing a pack, and the staff are fantastic. Helpful, knowledgeable, patient and friendly - and I think I'm probably a fussy customer and I have difficulty finding packs that fit comfortably. Has to be my best experience in this kind of store to date."

Tom Brickhill - 5★ "My favourite outdoor shop in Sydney. This is where you go if you want to see gear stocked because of it's quality, not just because it's corporate overload has pumped out another 10,000 puffer jackets that need to be moved before next season. Knowledgeable staff that actually partake in trekking and travelling themselves. Definitely worth dropping in!"

Adam Jude Baus - 5★ "Always friendly, helpful staff with great knowledge. Great range of good quality products (nothing really low end) including Australian/NZ brands e.g. Wilderness Equipment, One Planet and Aarn. Never had a fuss with exchanging unused gear within the 2 week period."

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