Assuming you are asking for a substitute fabric for suits, there are many options to choose from. Some popular substitutes include wool, linen, and cotton. Each fabric has its own benefits and drawbacks, so it is important to choose the right one for the climate and occasion.
Wool is a classic choice for suits and other formal wear. It is durable and resists wrinkles, making it ideal for travel. However, wool can be heavy and hot, making it less suitable for warm weather. Linen is a lighter weight alternative to wool that is perfect for summertime suiting. It breathes well and keeps you cool in the heat, but can wrinkle easily. Cotton is another versatile option that works well in both hot and cold weather. It is comfortable and easy to care for, but may not be as durable as some of the other fabrics on this list.
No matter which fabric you choose, make sure it fits your needs in terms of both style and function. The best suit is the one that makes you look and feel your best!