Polyester is a synthetic fabric that is known for its resistance to shrinking. Unlike natural fibers such as cotton or wool, polyester is less likely to shrink when exposed to heat or moisture. However, it is still possible for polyester to shrink under extreme conditions, such as high heat in the dryer or hot water in the washing machine. To prevent shrinking, it is recommended to follow the care instructions on the garment's label and avoid exposing polyester to high temperatures. **

Polyester itself is not inherently waterproof, but it can be treated with a waterproof coating or laminate to make it water-resistant or waterproof. This treatment creates a barrier that prevents water from penetrating the fabric. However, it's important to note that the level of waterproofing can vary depending on the specific treatment and construction of the polyester fabric. **

Polyester itself is not inherently stretchy, as it is a synthetic fiber known for its durability and wrinkle resistance. However, when blended with other fibers such as spandex or elastane, polyester can become stretchy. This blend is commonly used in activewear, swimwear, and other clothing items that require stretch and flexibility. So, while pure polyester is not stretchy, it can be made stretchy when combined with other materials. **

Polyester has both advantages and disadvantages. It is durable, wrinkle-resistant, and retains its shape well, making it a popular choice for clothing and home textiles. However, it is not as breathable as natural fibers and can be less comfortable to wear in hot weather. Additionally, polyester is a synthetic material made from petrochemicals, which can have negative environmental impacts. Overall, whether polyester is "good" depends on the specific use and individual preferences. **

It is not legal to watch A Silent Voice: Koe no Katachi for free in Karachi or anywhere else without proper authorization. The movie is copyrighted material, and watching it for free would be a violation of copyright laws. It is important to support the creators and industry by watching movies through legal and authorized channels. There are various platforms where the movie can be legally streamed or purchased for a fee. **

Fur is typically made of polyester acrylic, which is a synthetic material designed to mimic the look and feel of real fur. This material is often used in the production of faux fur products as a more ethical and sustainable alternative to real animal fur. Polyester, on the other hand, is a synthetic fabric commonly used in a wide range of clothing and household items, but it is not typically used to create fur-like textures. **

The most efficient way to store energy from renewable sources is through battery storage systems. These systems can store excess energy generated from sources like solar or wind power and release it when needed, providing a reliable and consistent energy supply. Battery storage also allows for flexibility in managing energy demand and supply, making it a key component in integrating renewable energy into the grid. Additionally, advancements in battery technology continue to improve efficiency and reduce costs, making it an increasingly viable option for storing renewable energy. **

No, the polyester has not discolored. **