Arm sleeves are protective gear used to protect the arms, typically made of durable, waterproof materials such as PVC, rubber, or canvas. Industrial arm sleeves are commonly 30-50cm long and 15-25cm wide, some with elastic bands or Velcro for fastening, suitable for machine operation, chemical processing, and other similar scenarios. Laboratory-specific arm sleeves prioritize chemical protection and are often made of antistatic fabrics, nitrile, or latex.