BIGGIE PACK X-PAC 45L - is an ultra-lightweight frameless backpack for long distance hikes and autonomous travels.

The backpack has a simple design and an increased volume is 45 litres. Entrance to the main body compartment is on the RollTop, it's made for quick access and easy volume adjustment. 

A feature of the backpack is the removable straps of the side version of the rolltop, the central strap and the load-lifters straps. That's maybe customize the backpack just for you.

The backpack has frameless design. For the forming the frame of the BIGGIE PACK we recommend to use a sleeping mat, putting it along the back of the backpack.

In contrast of the ELEMENTUM, the BIGGIE PACK hasn’t got a front compartment made of elastic material, but it has a large front pocket made of X-Pac fabric. .

There are some holes for water drainage in the bottom part of Pack.

The lacing system of the front pocket can be used for drying clothes and gear during the transitions or for additional fastening of equipment at the trail.

The backpack has 7 pockets: a central large front pocket, two voluminous pockets on the backpack belt, two side pockets and two updated pockets on the straps.

New mesh pockets on the shoulders straps: increased volume, now the pocket is fixed with a tightening system, and the pocket can also be closed/opened with one hand. These pockets will soon migrate to the Biggie Pack X-Pac 65L.

The backpack has a removable load-lifters system on the shoulder straps and in the upper part of the backpack. 

Lacing is provided for attaching additional gear on the sides and in the lower part of the backpack.

The weight of the backpack is approximately 600-680 g, and 500-580 g without removable straps, shock-cords and cords.

Main furniture: fastex, buckles and webbing straps - 15 mm, unlike the Biggie Pack X-Pac 65L where the furniture and straps are 20 mm.

The backpack is constructed of heavy-duty, hard-wearing and waterproof X-Pac backpack laminate. X-Pac is a highly durable laminated fabric composed of several layers of Nylon, Polyester and PET film. This material is designed for abrasion resistance with the lowest possible weight. It is flexible, lightweight, thin and waterproof.

The main material (fabric) of the backpack is 100% waterproof, but please, pay attention that the seams of the backpack are not sealed. This means that the backpack is not waterproof.


  • minimalistic simple design;
  • frameless design;
  • loops around the perimeter of the backpack for individual lacing and fixing extra equipment;
  • loops on a back of backpack for attaching a sleeping pad along the back;
  • light weight;
  • removable, adjustable chest strap;
  • removable rolltop webbing straps;
  • removable load-lifters webbing straps;
  • compatible with the hydration system;
  • 7 additional pockets;
  • volume side pockets that hold 1.5-2 liters plastic water bottles;
  • adjustable volume of a RollTop backpack;
  • there are water drain holes in the front and the side pockets;
  • inside waist side pockets have carbines for fixing useful little things.


  • Full volume: 45 L
  • Internal: 33 L
  • Center pocket: 5 L
  • Side pockets: 2 x 2.0 L
  • Stretch pockets on harness: 2 x 0.5 L
  • Hip belt pockets with zippers: 2 x 1 L


Up to 12 kg.


It’s depends from length of a body (torso length). This is the distance between the top of the shoulder straps and the bottom of the backpack.

  • S/M — 47cm / height up to 170-175cm;
  • M/L — 53cm / height more than 170-175cm.


Material: X-Pac backpack laminate, nylon elastic fabric, 3d airmesh, WJ 15mm fastening, YKK zipper.

Weight: about 600-680 grams, (500-580 grams without zip ties and elastic cords).

Complete set: Biggie Pack X-Pac, chest strap, elastic shock-cord.

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  • Ready for shipping: 56
  • 259 €

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