The fabric is made of 13OZ denim, pure indigo blue, soft texture is the characteristics of long staple cotton. The lining is made of high-quality lamb wool (polyester). The warmth in winter is high. The cut is waist-paid. This is about 2cm longer than the corduroy collar of the storm knight. Hardware using NON STOCK brass I-button (tinned), sewing thread for Khaki cotton thread, pendulum adjustment button for natural fruit (customized), each is different. The water has been washed and will not shrink after launching.