1. What is the most suitable capacity?
The most suitable capacity of small backpack is 30 liters (about 1800 cu.in), which is large enough to put down ten necessary items * and extra things for personal mountaineering.
Small backpack capacity may be as small as 10 liter (600 cubic inches) or as large as 40 to 50 liters (about 2400 to 3000 cubic inches).
If you are a regular team leader? Or help teammates (or children) move things? Then you may need a backpack of more than 40 liters.
In most cases, 30 liters of backpack capacity is a standard capacity and the most popular choice.
But if your activities range from hiking in summer to skiing in winter, you may need more than one small backpack. Consider your needs to decide your choice of small backpack.
Second, the top bag or no top bag style:
Style without top bag:
Small backpack, who has no top bag, uses an inverted U-shaped zipper (called "V" in Mandarin) to control the switch of the main storage space. Zipper can be used to control full opening or side opening. Because of the convenience of the switch, you can easily pack and find the items in the bag. If you are a student, a team leader or care about the classification and organization of packaging, you can consider small backpack without top package.
Style with top pocket:
The small backpack design of the top bag is often simpler and lighter (drawing will increase the weight), so it is very convenient to fill and pack from above the main bag. Some backpacks with pockets at the top have upward space to provide more capacity. The style of backpack with pressure belt on the side can improve stability and is suitable for skiing and mountaineering.
Disadvantages? It is a challenge to pack a small backpack with a top bag, because the equipment in the lower layer of the backpack will be difficult to take, and the important equipment always seems to be placed in the lower layer of the backpack.
Some small backpack have both a top bag and a zipper, so it is a convenient choice to combine the advantages of both.
Third, small backpack suitable for various activities:
① Hiking during the day: ◎ Usually, the capacity of 30 liters is the most suitable.
◎ Side pockets (usually elastic mesh bags, which can be attached to the backpack when things are not put)
◎ Interlayer (interlayer or pocket) is convenient for storing small equipment.
◎ There is a water bag interlayer and a straw mouth.
(2) Climbing (climbing/climbing):
Choose a narrow backpack, you will usually climb to a higher altitude and the temperature will be lower, so you need a backpack with a capacity of 40 liters (about 2400 cubic inches) to carry extra warm clothes.
Your ambition to climb will determine the capacity of your backpack. Consider the amount of equipment you carry, as well as your backpack with an ice axe ring and a daisy chain. In addition, backpacks with compression straps and chest straps help maintain stability.
Finally, ask your climbing partners what features their backpacks have that are most helpful to them.
③ Ski tourism:
Backpack with narrow back and high personal stability will get extra points. The range of your travel (take more clothes) will determine the capacity of your backpack. It's best to design a backpack with a hanging point where you can put a snow shovel and a snow stick. In addition, chest straps and belts are also important. The above two and three mentioned buying a narrow backpack. Why? Because the narrow backpack will not hinder your activities, and it is not easy to hook things.
④ Cross-country running/adventure racing:
Pockets, water bottle backpacks or small-capacity technical backpacks (below 25 liters) are all good choices. Wherein the waist bag does not move along with the actions of the user, and the back can be kept ventilated and sweat-drained.
⑤ Overnight travel:
If you can have the mentality of minimum use of equipment (light sleeping bag, sleeping bag, etc. ), a technology backpack can cope with the ultra-light overnight demand. It's just that few people can do it in general, so the recent trend of lightweight tends to use ultra-light medium-sized backpacks.
You can find a backpack with backboard and belt. Some backpacks have one or two aluminum strips in the system, which can carry higher weight. But even if it's just a one-night trip, the desire for outdoor comfort will make your backpack bigger and bigger.
⑥ Going to school/commuting/traveling:
Find a backpack with at least two or more compartments, including a compartment for magazines or laptops, and space for electronic products and small things. It's best to have a backboard to prevent books from being pushed on your back.
Fourth, the special design:
For women only:
The special backpack for women is characterized by conforming to the body shape of female users, including shoulder straps with different angles and narrow backboard design.
Water bag:
Many small backpack have water bag interlayers, which can hold 1 to 3 liters, but the water bag comes with the bag or needs to be purchased separately. Please ask clearly first.
Pocket:
Their stable design is very popular with runners.
One-shoulder backpack:
The unique appearance and backpack make cyclists love it very much.
Small backpack:
Traditional backpacks have fashionable appearance and functions.