The fabric of the jacket is generally divided into the outermost protective layer, the middle waterproof and breathable layer and the lining. The protective layer and the waterproof and breathable layer are pressed together, and the lining is separate from them, usually nylon silk, mesh cloth or some kind of sweat-absorbing material, mostly black. The rubber strip at the seam is blocked by the lining and cannot be seen (unless it is through the mesh). Three-layer fabric: the protective layer, the waterproof and breathable layer and the lining are pressed together, which looks like a layer of fabric. Generally, the color of the lining is mostly silver gray. You can see the rubber strips at the seams of the lining. Generally speaking, the air permeability and warmth retention of the two-layer fabric are slightly better than the three-layer fabric, but the three-layer fabric is lighter in weight, comfortable to wear, and has a small folding volume. So unless you only consider using it in winter or snowy mountains, it is generally better to choose a three-layer fabric.
Jackets have several conditions: First, the structure meets the requirements of mountain climbing. Mountain climbing often involves various activities in harsh environments, including load-bearing walking, technology, etc. The structure of the jacket must meet the requirements of these activities. Secondly, the manufacturing materials need to meet the requirements of mountain climbing. Due to the special environment where mountain climbing is located and the needs of mountain climbing, the material of the jacket can meet the requirements of windproof, waterproof and breathable. The soft shell is far from achieving this effect, so, in contrast, jackets are more suitable for outdoor sports.
When choosing a jacket, look carefully to see if the seams of the jacket are tight, if the glued area is flat, if the zipper is used neatly, if the stitching is regular, and if there is any remaining thread. These details are the norms for judging the quality of jackets.