Outdoor, cotton shoes are the best choice for keeping warm in winter, but at the same time, the insulation performance of different materials varies. In outdoor activities, it is important to know which material to choose for cotton shoes. Here are some common materials:

1. Wool:

Wool is a high-quality insulation material with excellent insulation performance and breathability. Wool shoes and boots can provide moderate warmth, while also having excellent moisture absorption, breathability, antibacterial and deodorizing effects, and strong pressure resistance. Wool material is almost unaffected, always maintaining a warm and dry feeling inside the shoe cavity.

2. Down:

Down has good insulation effect, lightweight and comfortable, suitable for outdoor activities. However, it should be noted that down shoes and boots are mostly designed for static insulation, as feet sweat more during high activity, so the water and pressure resistance of down materials are relatively poor.

3. Synthetic cotton:

Synthetic cotton, such as Primaloft (P cotton) and 3M's New Cheryl, is the most common insulation material for winter shoes and boots. These materials belong to the category of "siliconized ultra-fine denier hollow polyester fibers", which have excellent insulation and water resistance properties. They can still remain fluffy in humid environments, keep warm even when wet, and have good washing resistance.

4. Primaloft shoe and boot insulation solution:

Primaloft materials are thicker, with cotton coats typically using a thickness of 60-120g/㎡ and shoes typically using a thickness of 200-400g/㎡, achieving higher pressure resistance.

Overall, wool and synthetic cotton (such as Primaloft) are ideal insulation materials for cotton shoes in outdoor activities, as they provide good warmth, breathability, and water resistance, while also being able to adapt to various conditions in outdoor activities. Down is also a good choice, especially for static insulation occasions. When choosing, the most suitable insulation material should be determined based on the specific type of outdoor activity and environmental conditions.