Warm and soft woolen fabric is used. It has heat retaining, humidity control, antimicrobal and deodrant finishing. The pocket would not interfere with the backpack. It comes with the carabiner on the flap and nylon patch is on the shoulder and elbow.
Quality:WOOL 83% NYLON 17% 別布 NYLON 100%
WOOL 83% NYLON 17% partly NYLON 100%
made in Japan