100 yuan three-in-one coat may not meet your requirements. Generally speaking, the price of a functional coat is generally above 1000 yuan, because it needs to have various functions such as windproof, waterproof and breathable, and it also needs to consider durability and comfort.

If you want to buy a cost-effective coat suitable for daily commuting, it is recommended to choose domestic professional brands, such as Pathfinder and Kellogg's. These two brands have performed well among domestic outdoor brands and their prices are moderate.

If the quality requirements are high, you can choose international brands such as North. These brands of jackets are excellent in professionalism, brand image and workmanship. Although the price is relatively high, the cost performance is still relatively good.

Generally speaking, if you want to buy a 100 three-in-one coat, you need to be psychologically prepared for its quality and performance. At the same time, you can also consider choosing domestic professional brands or international big-name jackets with higher cost performance.