First of all, if you don't have a good jacket, when you go into the wilderness and high altitude, you can do high-intensity outdoor sports. In the face of cruel nature, complex environment and extreme climate, you are no less naked.

The origin of assault suit

The trench coat evolved from the animal fur coat. Its history can be traced back to the Eskimos hundreds of years ago. In the early days, this kind of clothes was used for outdoor work such as fishing and exploration, which was called work clothes. Later, because of its all-weather functionality, it gradually developed into the mainstream clothing for outdoor sports such as mountain climbing, rock climbing and exploration.
At the beginning, the sportswear entered the domestic market. In order to distinguish it from ordinary clothes, we translated it from its application scenarios. As the trench coat is often used for climbing high altitude snow mountains and sprinting at the top of the mountain with light clothing on the last day, people named it as "trench coat" vividly
The sportswear belongs to the combination of cutting-edge fabric technology and advanced technology in the textile industry. As a functional garment, it has gradually developed into an urban garment integrating design aesthetics and fashion elements from the original simplicity of outdoor sports.
Category of assault suit

Hard shell jacket: high-altitude environment, complex landform, changeable climate, long journey, high-intensity outdoor sports.
Soft shell jacket: low altitude environment, simple landform, predictable climate, short trip, low intensity outdoor sports.
The charge coat is divided into hard shell and soft shell. The hard shell charge jacket focuses on personal protection in extreme environments and complex climates, and is suitable for professional outdoor sports. The soft shell sweater focuses on fashion, breathability and comfort, so the soft shell with certain outdoor functions is compatible with general outdoor sports and urban leisure wear.
In addition, the traditional three in one jacket is a combination of two pieces of clothing. A hard shell jacket, paired with a fleece jacket, whether worn alone, alone or together. These three wearing methods are commonly known as "three in one" assault suit.
Although the three in one sportswear has strong compatibility with changing outdoor scenes, the middle way not only brings more weight, but also has the disadvantage of inconvenient wearing and taking off due to the integrated zipper design of two pieces of clothes. Most of the three in one sportswear are intended to use low-cost fabrics to seize the market with cheap advantages. However, the lack of quality and functionality is also the main factor criticized by everyone.
Although some brands have also introduced high-end three in one sportswear, for example, Archaeopteryx once had a three in one sportswear with a price of up to 26000 yuan. Such a large amount of cost input, expensive market pricing, and price sensitive consumers are not willing to pay, so high-end three in one has gradually disappeared.
In line with the Outdoor Layering and Wearing Rules, as a protective layer that does not have the effect of heat preservation, the trench coat originally needs to be matched with different heat preservation layers according to different outdoor scenes. The single-layer hard shell and soft shell give competitive pricing advantages, and also make major brands willing to invest more costs.
For outdoor enthusiasts, whether it is the freedom of collocation or more professional functionality. The quality and weight of single-layer assault suit are obviously optimized, which also brings better comfort and experience. Naturally, people prefer to consume single-layer hard shell or soft shell.

To understand the magic of the sweater, we first need to know its material.
In order to cope with the changing outdoor environment and provide all-round protection for people, the materials of the trench coat are very different from ordinary clothes in terms of material technology and manufacturing process.
The material structure of the sweater is divided into fabric (protective layer) - film (functional layer) - lining (skin friendly layer). The combination of these three parts with advanced technology, like a perfect sandwich, has laid the core foundation of the assault suit.
The outermost protective layer of the jacket is mostly made of polyester or nylon.
When we are doing outdoor sports, the protective layer provides a certain degree of protection against the outside world. Therefore, the exposed fabrics can not only protect our bodies from being hurt by branches and plant barbs, but also withstand wear and tear. In addition, due to the waterproof treatment of the fabric, the submachine jacket has the waterproof performance of the first layer.
The common protective layer is made of polyester fiber (also called polyester). Polyester has the advantages of strong air permeability and low cost, while its disadvantages are non abrasion resistance and poor melting resistance. Generally, polyester fabric is used as the trench coat in the low-end market. The mid market sportswear will use better polyester, but if the expensive sportswear uses polyester fabric, it must be in pursuit of more profits.

Polyamide fiber (commonly known as nylon) is the first choice for high-end sportswear fabrics. Nylon fabric is light and durable. Although nylon has the disadvantages of poor heat resistance and permeability, and the material is hard. However, because of its super protection and excellent wear resistance, both the protection against extreme environments and the service life of the clothes have been greatly improved, so nylon will be used as the fabric of high-end assault suits.
The functional layer in the middle of the jacket, film for first-line brands, PU for second line and third line brands, and non streaming coating.
Coating: coating technology is widely used for cheap assault jackets, which has the advantage of no threshold and almost no cost. The coating is equivalent to brushing a layer of glue on the fabric to prevent water and wind. However, due to uneven brushing of glue, in addition to poor waterproof, unstable chemical properties are also easy to peel off.
PU: Most of the sportswear in the mid market are made of PU. In fact, PU is also a kind of film. Its advantages are excellent waterproof and windproof performance, but its permeability is very poor. In addition, PU is prone to aging and has a short service life. The main problem is that PU has poor adaptability under high and low temperatures, and it is easy to give up in the face of extreme environments.
Generally, middle and low-end brands claim to have advanced fabric technology, but the product price is several hundred yuan, basically PU.
Film: As far as durability and performance are concerned, film is the best choice at present, so most famous brand of assault suit use film as the functional layer. There are countless invisible pores on this film. Each pore is smaller than the water molecule, but larger than the water vapor. It not only prevents rain infiltration, but also has the permeability of sweat gas emission.

The skin friendly layer inside the sweater is generally made of warp knitted cloth, and the top grade is made of super wear-resistant bottom cloth.
Warp knitted fabric is a kind of fabric with reticular structure. On the one hand, the use of warp knitted fabrics is for the comfort of wearing, on the other hand, it is to make an isolation layer between the sweat volatilized from the human body and the clothing, and most importantly, it is to protect the film in the middle, so as to prevent the human body from wearing the film during outdoor sports.
The top class sportswear all use super wear-resistant bottom cloth, which is not only very soft, but also very wear-resistant. Close to the skin comfort, coupled with super protection, is simply the existence of golden armor. The top class sportswear is also the artifact that every outdoor enthusiast would like to have.