3M Thinsulate Fiber is an excellent choice for shoes (B/BQ/BZ). This material not only doesn't weigh the feet down with its lightweight structure but also provides superior performance in maintaining warmth. By combining temperature control with moisture resistance, it keeps the feet dry and comfortable. Its breathable feature assists in ventilating the feet and reducing sweating. It prevents compression under moderate pressure, thus ensuring long-lasting comfort and preserving warmth. Moreover, it holds the Oeko-Tex 100 certification, demonstrating its environmentally friendly and reliable nature. If you're seeking the best performance and comfort for the shoes, it will meet your needs.