Sandwich mesh is a type of fabric that is used in many shoe products. It is a lightweight, breathable material that provides comfort and support. The fabric is composed of two layers of nylon or polyester mesh, with a foam layer sandwiched between them. This foam layer acts as an insulator, providing cushioning and support to the foot. Sandwich mesh is commonly used in running shoes, as it provides excellent breathability and ventilation. The foam layer helps to absorb shock and reduce fatigue while running, making it ideal for athletes who need extra cushioning and support. The fabric also helps to keep feet cool by allowing air to circulate around the foot. In addition to running shoes, sandwich mesh can also be found in other types of footwear such as casual shoes, sandals, and boots. Its lightweight nature makes it perfect for these types of shoes as it does not add unnecessary bulk or weight. The breathable material also helps to keep feet cool during warmer weather conditions. Overall, sandwich mesh is an excellent choice for many types of footwear due to its lightweight nature and breathability. It provides comfort and support while still allowing air to circulate around the foot, making it ideal for athletes or anyone looking for a comfortable shoe option.