The method of distinguishing cold zone and warm zone by cotton trousers. Double-breasted cotton-padded clothes in cold areas can be adjusted with the increase or decrease of clothes. There is an inner pocket on the left side, and the button is sealed.

1, cold cotton-padded clothes and warm cotton-padded clothes are of the same color, and cold cotton-padded clothes are thicker than warm cotton-padded clothes. In cold areas, stand collar, threaded cuffs, hem threaded mouth and underarm threaded mouth are also used (which can make shoulders comfortable, flexible and breathable).

2. Cotton trousers in cold areas are the same as those in warm areas, and the color in cold areas is slightly darker. Anti-static yarn is added to the fabric in cold areas, the waist side of cotton trousers is elastic, and the trouser legs have belts and zippers.