a type of strong cotton cloth with a surface that feels like very short hairs

moleskin trousers 厚毛头斜纹棉布裤

a soft thick material that you stick on your foot to prevent blisters (= sore raised areas where the skin has been rubbed)

Don't forget to pack bandages, painkillers, and moleskin. 不要忘了带上绷带、止疼药和防起水泡专用贴布。