The Deuter ACT Lite series of packs are designed to be extremely comfortable carrying heavy loads over multiple days. They're optimised for multi-day hikes but can also be used travelling, mountaineering or on long ski tours. The 40 + 10 gives up to 50 litres of storage space (hence the '+10'), ideal for trips from a single overnight up to a lightweight week.
The ACT Lite packs are constructed from very hard wearing fabric with a reinforced base, designed to handle years of abuse in the mountains. Deuter's 'Air Contact' back system increases the airflow between your back and the pack which keeps you cooler and drier - especially good for hot and sweaty summer backpacking trips. The combination of the padded back system, contoured shoulder straps and hip belt provides a really comfortable carrying system, with an easily adjustable back length to tailor the pack to your body shape. The internal aluminium frame is removable for lighter weight trips or easy packing inside a holdall.
There is no shortage of features on the ACT Lite, including the extendable lid (to increase pack size) with a zipped internal pocket and a front stretch pocket ideal for storing a waterproof or helmet. The separate bottom section is designed for your sleeping bag, to optimise the weight distribution inside the pack and organise your gear for easy unpacking.
An ideal choice whether you're doing a wild camp in the Lake District, taking a weekend trip to Europe or hut-to-hut trekking in New Zealand.
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I bought this as a ski-touring and short expedition backpacking rucksack. I like to go on 2-4 day solo hillwalking with tent, sleeping bag, mat stove etc, but trying to avoid excess weight. Can't quite manage in an OMM sac. I tried this out on a two day jaunt in the Scottish hills in September (+5 degrees overnight). Very comfortable, well thought out sack that feels well made. I like the capacious pockets on the hip-belt (why don't all manufacturers do these??) and the fairly secure external pocket for wet stuff or quick access. It feels as if it would be fairly waterproof, but haven't really tested that yet- no rain in Scotland! Easily adjustable back length as well. Can't fault it yet- will see how it does on a 7 day ski tour, but it is roomier and only slightly heavier than my old Campack4 that I have used for the last 5 years.
Was looking for a sack that would take enough for two-three day backpacking trips with camping gear. Have previous experience of Deuter day sacks, and this is similarly excellent in design and build quality. There is plenty of room for a sleeping bag in the bottom compartment, and loads of storage space for other items, with great flexibility and packability, meaning that it can be used as a day sack without being too bulky. The side pockets are deep, and longer items (e.g. tent poles) can be held securely thanks to the straps further up the side of the sack. The front pocket is generously proportioned well sized for a range of items. It is very easy to adjust the back system for a good fit, and the sack is comfortable to wear with a full load over varied terrain. Only negative so far is that this model doesn't come with a built-in rain cover like others in the Deuter range. Bought the 30-50L Deuter cover for an additional £14, which works fine.
I've just walked the Camino de Santiago (500 miles across the north of Spain) with this pack on my back and was very happy with it s performance. Its a comfortable carry due to a) the adjustable back length, which means that you can achieve good weight transfer to the hips and b) the well padded harness and hip belt. I was only carrying 10 kg, but the pack would comfortably carry more.
The design is simple and uncluttered, and the quality of components is great. Because of the slim design, there is unrestricted movement. I particularly liked the ability to expand and contract the volume by using the extension (to expand it) or by closing off the bottom section and/or cinching in the compression straps (to reduce it). I also liked the pocket on the right hip fin - useful for snacks - and wish there was a matching pocket on the other side, but this is a small point. I have no complaints about this sack. It does what it's meant to do and would highly recommend it to anyone looking for a versatile, medium sized pack.
I have been using this pack for over 2 years and I have nothing but praises for it.
It's light, VERY comfortable and extremely versatile. For a 40+10 it can carry more than it's fair load and the carry options inside and outside the pack make it great to sort your gear around.
Excellent sack for ski touring or carrying instructors kit.
I have just returned from my first trip with the Deuter Act Lite 40+10. Having owned another brand 50 liter rucksack, I must tell that Deuter rocks. It seems that 40L from Deuter is roomier than my old 50L.
The backpack is lightweight, yet it is very comfortable. Not too many pockets, but still enough options to store equipment. The fabric is thinner than other Deuter's models, but feels solid. I really appreciated the hiking poles attachment loops, the pocket on the waist belt where I did keep my phone, and the external outer pocket on the front where I used to store my fleece or jacket without opening the backpack.
The adjustment options are plenty. I have tried multiple back lengths before setting with the best. The only downside is that the backpack does not include a rain cover. Since I owned a separate cover for my old backpack, it is not a big minus for me. Others might need to buy one. Overall, I really liked this backpack and I highly recommend it.
The ACT is a very well made sack, the zips & buckles look like they will last a long time, which can be a big problem on cheaper sacks. I like the size with the extra 10L for a big jacket if the weather turns nice on a long day out. The bottom compartment is great for all those extras you hope not to need, spare batteries, first aid, spare clothes. I like all the stretchy side and back pockets for snacks and drinks, just like my old KIMM sack. The attachments for poles are good too and the 2 lid pockets very useful. The carry system is very good, flexible, comfy nicely padded hip belt and straps and plenty of airflow to keep your back cool. I like the 40L capacity for autumn and winter walks when you may need more kit. Overall I very impressed with the product.
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