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Mountain Equipment Ogre 33+ Acid

Mountain Equipment Ogre 33+ Acid

£102.00 £120.00
15% off

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Other colours available:
Mountain Equipment Ogre 33+ Blue Graphite
Mountain Equipment Ogre 33+ Acid

Tough, versatile and comfortable - the Ogre 33+ from Mountain Equipment is ideally suited to cragging days, multi-pitch trips and single day mountain adventures. 


Season : 2020S C

Code : 003401-01514-O/S

Weight : 0KG

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What is the Ogre 33+?

The Ogre is a lightweight, rugged, comfortable pack that bridges the gap between super technical climbing bags and day-hike bags. It's aimed at everyone from climbers, mountaineers, hill walkers and every adventure in between. 

What is the Ogre made of?

The Ogre is constructed using two different weights of M series fabrics - M840 and M210. These are both durable, double-ripstop Polyamide fabrics that feature a DWR (durable water repellent) face-coating for water repellency and snow shedding with a PU coating on the inside. This fabric is not only optimised for weather resistancy but also built to take a beating - no scuff and tears whilst you're hauling your pack up a multi-pitch climb.

What is the backsystem?

This is where the Ogre is incredibly clever; most of the elements of the carry system can be removed to offer on-demand minimalism. The pack features a removable EVA composite back panel, that not only manages sweat remarkably well but also adds an extra layer of comfort when carrying hefty, jabby climbing items. It is also incredibly tough and won't snag when hauling the pack up a rock face. The 38mm webbing hipbelt features high density, EVA moulded fins that are also removable. They are incredibly comfortable and hug your body like a climbing harness, offering reliable stability and all-day comfort. The final factor of the carry system is the shoulder straps - these are also EVA moulded and curved to sit out of the way of the movement of your shoulders, whilst simultaneously protecting from chaffing. The EVA is also effective at moving sweat away from your body on even the hottest of mountain days. The chest strap is fully adjustable and offers extra support when carrying heavier loads. 

What are the features?

Much like the backsystem, the features are also minimalistic - most of which can be removed to strip the weight right down. Starting from the top, the lid features an integrated cowl-lid pocket with external zipped access for quick, on the move items. It is incredibly spacious and is the perfect place to stash the suncream, gloves and jelly babies. The lid also features a zipped internal security pocket that is the ideal place to stash phones and keys. This cowl-lid also double up as extra protection from adverse weather conditions.

The lid is secured in place by a Durable Grappler buckle - originally designed for the Tupilak Pack, the Durable Grappler buckle has proved to be a game changer. It is easy to use with big mitts on and stays put no matter how much downward force you put on it (we have tried and none of us could get it to budge). The strap on the Durable Grappler buckle is extra long so you can carry a rope or a helmet under the lid of the pack.

The side compression straps are adjustable and removable; the thermoplastic hammerhead toggles can be adjusted both up and down the pack for additional external storage, as well as being able to be synched tight for added stability if your pack is underfilled. The axe head toggles have been custom developed to be lightweight, durable and fully removable. They have flared fins that will secure a wide range of ice tools to the outside of the pack. The pack also has an integrated pick pocket so you can tuck the sharp bits of your axe out of the way.


The Ogre strikes the perfect balance between technical, clever design and day-long comfort. It will become your best friend no matter your adventurer and no matter the season. We are sure you'll fall in love with it just as much as we have.

  • Lightweight
  • Durable
  • Minimalist design can be stripped back to suit your adventure
  • M840 and M210 fabrics are water resistant and exceptionally rugged
  • 33+ litre optimum capacity
  • Integrated cowl-lid closure
  • Durable Grappler buckle
  • Spacious zipped lid pocket
  • Zipped security pocket on inside of lid
  • Side compression straps with thermoplastic hammerhead toggles
  • Removable EVA back system
  • 38mm webbing hipbelt with removable EVA moulded fins 
  • EVA composite shoulder straps
  • Removable dual axe retainers with integrated pick pocket
  • Daisy chain system and grab handle
  • Supplied with Shockcord System
Care & Advice

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

Minimum Weight: 660g

Maximum Weight: 920g

Back Length: 47cm

Sizing Information

Click here for the manufactures size charts.

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Mountain Equipment Ogre 33+ Acid

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3 in stock


Excellent customer service. Really detailed easy to understand product descriptions on the Trekitt website, and gear reviews on the Trekitt YouTube channel made it so easy to choose the right backpack for me.
Emily - May 2020
Amazing service! Very helpful in regards sizing and what most matched my needs, despite this being done over the internet. YouTube videos of products being examined are very useful also. Would definitely use again, very fast and efficient delivery. Brilliant! Highly recommended!
David R - April 2020
Highly recommend. I usually go to the shop in Hereford as staff are alwasy very helpful and knowledgeable. So this was the first time I have purchased online and the service was just as good as the shop.
Grizzy - April 2020


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