Fiberglass is often used in the construction of skis to enhance their strength, stiffness, and durability. The following are common applications of fiberglass on skis 

The use of fiberglass helps make the ski lighter while adding strength to the overall structure. This provides better handling and longer life, allowing skiers to better adapt to a variety of snow conditions and terrain.

While fiberglass offers some advantages in ski manufacturing, there are also some disadvantages, especially when compared to some high-performance materials. For example, compared to some high-performance lightweight materials such as carbon fiber, glass fiber has a higher proportion. This can result in a relatively heavy overall ski weight, reducing handling and agility; although fiberglass has higher strength, its strength-to-weight ratio is relatively low and performs poorly compared to some other high-performance fiber materials. ; Glass fiber is relatively rigid, which may make the ski too rigid in some situations, reducing the flexibility of the board; compared with some high-performance fibers such as carbon fiber, glass fiber has relatively low impact resistance. Under extreme conditions, such as large impacts or bends, fiberglass may break; fiberglass may exhibit some temperature sensitivity under extreme temperatures, which may affect the performance of the ski in different snow conditions and temperatures.