How big of a backpack should I buy? (Trans-Mongolian)

How big of a backpack should I buy? (Trans-Mongolian) - Happy female cafeteria employee putting on big yellow thermo bag on shoulders of positive child in casual wear working as food courier and looking away

I'm looking into buying my first ever serious backpack for hiking/large trips. I'm unsure of how large I should go. I currently own a 35 Liter bag, which was great for weekend trips when I was studying in Europe, but I had issues trying to do 10 day trips with it. So what is a good size? 75 Liters, 65 Liters, and 55 Liters seem to be the three most common sizes above 35 Liters. However, I've read a bunch of places that 75 Liters is too large for anything but the longest trips.

My current upcoming trip that is prompting this is the Trans-Mongolian railroad. I'm not doing the entire thing all at once on the train - I plan to stop at varying places, so I don't necessarily need to bring as much with me on the train as someone else might. My guess is I'll be doing it for 4-5 weeks. I know the weather can be a bit unpredictable this time of year, so I'll have a few extra clothing items. I'm sure I'll want to buy some things as well.

Does anyone have any experience with this? Did you do the Trans-Mongolian (or any Trans-Siberian variant) and find your bag to be too small or too large?

Should I get a 75 Liter, 65 Liter or 55 Liter bag? Thanks!



Best Answer

I think the choice of luggage very much depends on the type of trip you are planning to do. If you are doing standard backpacking trip, when you need to carry your stuff mainly for short distances from a hotel to a bus or train, then it makes sense to have a bigger backpack with more clothes/stuff to make your journey more comfortable, and have some spare room for the things you will buy on the way.

If you are planning to do a lot of hiking, or ride a scooter like Mark's friend, then I would definitely optimize for weight and pack ultra-light. When trying to keep the weight low, you need to buy a light-weight backpack. You would be surprised how heavy some of these 55l pack can be!




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Trans-Mongolian Railway: What to pack




More answers regarding how big of a backpack should I buy? (Trans-Mongolian)

Answer 2

It depends. There are guys who have only 2 pair of socks (change if one get wet, one on feet, one is drying), 2 T-Shirts etc. On 1-week trip it can work, and it can, for sure, get you free compartment in the train, as no one will want to sit near you...

If you don't go so extreme, I can't honestly imagine packing for a few weeks in 55l backpack. There are simply too many things to be taken. At least one-week supply of socks, T-Shirts if you want to smell better as clochard, spare trousers (in case of heavy rain, falling into a stream or mud), 2 polars, rain-proof jacket, sandals, first aid kit, at least 1 big bottle of water and some food supplies (don't count on shop open in every village 24/7). You could also need a sleeping bag.

I'd say, 75l is a minimum, but buy as large backpack as you can. A backpack is never "too big", you don't have to load it at maximum, and the weight difference may be about 1kg (my 80l rucksack weights about 3kg) which is practically nothing (maybe unless you make an air travel, which is not the case). However, if the rucksack is too small, you're out of options.

There are people that go minimalistic but they are experts and they are limiting their luggage based on the experience from the previous trips. If you're asking here, you're not, so it's safer to take more than less.

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