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The Lowe Alpine AirZone Trek is designed to offer seamless comfort and support while out in the mountains or on the trails. Thanks to their new Airzone+ backsystem, it's one of the most comfortable rucksacks available. 

The Lowe Alpine AirZone Trek is designed to offer seamless comfort and support while out in the mountains or on the trails. Thanks to their new Airzone+ backsystem, it's one of the most comfortable rucksacks available. 

Lowe Alpine

Lowe Alpine AirZone Trek 35:45 Fern

£126.00  £140.00  10% off
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Estimated Delivery & Collection Dates

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The dates we provide are based on indications given by our suppliers. Whenever we get updated information from our suppliers we will endeavour to update the Estimated Delivery & Collection Dates provided on product pages.

We estimate this will be ready for dispatch to you or collection via Click & Collect on the Undetermined

Lowe Alpine AirZone Trek 35:45 Fern Information

Season : 2020W R

Brand : Lowe Alpine

Code : FTE-89-FE-35

What is the Lowe Alpine AirZone Trek?

This Airzone Trek is the perfect mid-sized pack for long distance hiking or minimalist multi-day trips.

The AirZone range of packs from Lowe Alpine have recently undergone a complete overhaul, including a redesigned “Formknit” backsystem, a more versatile pocket layout and a host of buckles and attachments for your various mountain and trail accessories. These upgrades have cemented it as one of the most comfortable and well-equipped hiking packs we stock.

What is it made of?

The main bulk of the bag is made from a super tough, yet lightweight 210D ripstop nylon with a HydroShield (PU) water resistant coating. This fabric provides high levels of abrasion resistance without increasing weight. The addition of a DWR applied to the face fabric helps to repel light rain and snow shower. Please note however, that despite the HydroShield coating and DWR, this pack is not 100% waterproof, so, if it’s really hammering down you can use the included rain cover.

What is the backsystem?

The main update comes in the form of a fully redesigned Formknit Airzone + backsystem. This new fully suspended, or trampoline, system creates a gap between your bag and the pack itself, allowing constant airflow during use. Providing the structure and support for the whole pack is a lightweight wire frame and TPU sheet hidden away inside the pack. The bit which makes contact with you is made from a soft knitted fabric to provide optimum comfort by forming to the shape of your back.; hence the name – “Formknit”. 

The knitting of the fabric produces zero seams or stitch points, massively reducing the chance of rubbing or hot-spots over long distances. Cleverly, it also features a looser knit in areas which require greater comfort and ventilation, and a tighter knit in areas which require higher levels of durability and support. This new “Formknit” fabric extends as a single entity down into the hipbelt to increase comfort. The hipbelt is incredibly comfortable and effectively transfers the load to your hips thanks to the continuous and seamless Formknit technology.  A forward pull webbing belt ensures you can get the hipbelt really snug and secure.

The lumbar pad has also had an overhaul, making it softer than previous generations and with improved ventilation through the foam cut-outs, increasing comfort and support on longer treks.

The shoulder straps feature breathable cut-outs to enhance comfort and ventilation and are lined with a fast drying and high wicking fabric. You also get a fully adjustable sternum strap, with a built in whistle, to help equalise the load and relive pressure across your shoulders.

No technical rucksack would be complete without plenty of custom-torso-length-adjustability, and the AirZone is no different. Rather than the traditional method of adjustment which is via the outer of the pack, the AirZone Trek's backsystem is adjusted from the inside. Simply access the main compartment of the bag, undo the Velcro and adjust up and down to your desired length. No forcing your hand between two pieces of Velcro or wrestling with fiddly buckles, just nice and easy.

What are the features?

Entry into the pack is achieved via a traditional top lid opening by unclipping the two webbing straps on the front of the pack. The lid itself can also be extended to give you that extra 10 litres of volume indicated by the 35 to 45 size.

Under the lid is a really useful top tension strap with a reinforced panel that acts to store ropes etc. or to help control the load, and there is a generous drawcord controlled valance to keep the contents protected. This valance also extends when you want to increase the volume of the pack.

You can also get into the pack via a large u-zip running around the front of the pack that allows you to open up the whole pack, much like a duffel. Once opened up, you will see the internal divider that can either be zipped up to create two separate internal compartments, or left unzipped for one big compartment. This is a really versatile features that enables you to split the contents of your pack or to help with organising your stuff.

Once inside the pack you’ll find the huge hydration sleeve that’ll easily swallow a 3 litre bladder. The opening is controlled by a small webbing loop and buckle that also acts to stop the bladder slumping right down to the bottom of the sleeve.

Other storage is provided by a plethora of pockets; you get:

A large stretch mesh front pocket, the perfect place to stash soggy overtrousers, gaiters or even a wet tent flysheet.

Two large stretch mesh side pockets for water bottles etc.

Two zipped hipbelt pockets, perfect for energy foods, compass, phone etc.

An external zipped lid pocket for hats and gloves or other essentials

An internal zipped security pocket under the lid with a useful key clip.

Other useful features include the Headlocker ice axe attachment and TipGripper attachment for walking poles. An integrated raincover, stashed in a small zipped pocket at the bottom of the pack, stretches over the front of the pack and is secured with a toggle/loop system on the back-panel. You can also completely remove the raincover if you are absolutely certain that it isn’t going to rain.

External lash points add useful tying points give you the option to attach even more kit, however I’m not a big fan of loads of things dangling off my pack; if it won’t fit inside then I’ve probably packed too much stuff.   


The Lowe Alpine Trek is a technically advanced, incredibly comfortable and well ventilated trekking pack for all mountain and hill activities where you need to carry stuff.


  • Zipped front entry with divider panel
  • Stretch mesh front pocket
  • Front lash points
  • Featuring FormKnit technology
  • Internally adjustable back-length
  • Breathable harness and hipbelt
  • HeadLocker axe attachment system
  • Secure TipGripper walking pole attachments
  • Large stretch mesh side pockets
  • External zipped lid pocket
  • Forward pull hipbelt adjustment with zipped hipbelt pockets
  • Internal zipped security pocket with key clip
  • Rain cover

Getting the correct fit for your rucksack is as important as getting the fit right for your boots. A badly fitting pack can inflict misery and discomfort and completely ruin your adventure. This guide is designed to help you get the best fit and comfort from your chosen pack so that carrying all your kit becomes a pleasure and not a chore.


If the pack has an adjustable back length, adjust this to your correct level. Your back length is not related to your height but your torso length. Many packs, and specifically the bigger and more technical packs are available in different back lengths or feature adjustable back systems. Contrary to popular belief, your torso length and not your overall height is the key to getting a well fitted pack. Tall people don’t necessarily have long torsos, just as shorter people don’t always have a short torso length.

Your torso length can be found by measuring from your C7 vertebra (the bony protrusion at the back of your neck when looking down) to the height of your iliac crest (top of your hip bones, where you put your hands on your hips). This measurement will give you an idea of which pack back length to choose.

Once you've got the back length sorted, either by selecting the correct size pack or adjusting the back system, you can begin to follow these simple steps to help achieve a comfortable carry.


Before you start fitting the pack, loosen off all the straps as this will make it easier to get the correct tension later.


Fasten the backpack hipbelt, the general position is the same as where you’d put your ‘hands on hips’ This area is called the pelvic girdle, and what you can feel when you rest your hand on the area is the bony protuberance, the iliac crest. The iliac crest can support the weight from a pack comfortably, and for sustained periods. The padded section of the hipbelt should encompass this and fit securely.

Tighten the straps so the hipbelt feels secure and held firmly around your body. Ensure that the lumbar pad is centered to your lower back to give you maximum support. Remember that your hips carry most of the weight of the pack, so this should be firm but comfortable.


Next, adjust the shoulder straps, pull them until they start to become snug, but ensure that they are not too tight as to lift the pack off your hips. Remember tightening them will stabilise the pack but will increase pressure over the shoulders. If the back length of the pack is correct the shoulder straps will be flush to your shoulders whilst the hipbelt sits in place comfortably. The point where the shoulder straps attach to the main body of the pack should be roughly half way down your shoulder blades; this ensures  that the shoulder straps rolls evenly over the top of your shoulders to distribute the weight correctly.


Fasten the chest strap and pull until taut but not tight, the elastic section should not be extended. This helps keep the shoulder straps from catching in your shoulder joints and keeps the stability of the pack when moving over rough ground.


Top tensioner straps link the shoulder straps to the top of the pack. When tightened, their main function is to stabilise the top part of the pack. The optimum angle for these straps in 45º, but they will stabilise the load even when horizontal or at a more obtuse angle. Tighten them until you feel the top part of the pack rest against your pack, over tightening them will create excessive pressure on the front of your shoulders.


Side tension straps are linked to the hipbelt. By tightening these straps you can stabilise the load but reduce the hipbelt flexibility. Where balance is critical tightening them can help you feel more secure. However, if you are striding out over easy terrain it’s better to loosen these straps to allow full hip flexibility.


Side compression straps come next, pulling these tight does two things: firstly, it stabilises the load, secondly it can lift the lower part of the pack, repositioning the load closer to your back.


Following these steps should give you a comfortable but secure fit on your pack. Sometimes adjustments will need to be made on the go depending on the terrain or the load you are carrying. The perfect fit is very much a personal preference so experiment with different tensions on the pack to find what suits you best.

Technical Information

Weight: 1.6kg

Fabric: 210D 6.6 Mini Ripstop / HydroShield

Sizing Information

Volume: 35+10lt 

Back length: 19-21" / 48-53cm

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