Won't a rigid belt be hot and uncomfortable to wear during physical work? — Rigid support for lifting weights size 2 216-2

The card does not describe the belt's material, breathability or ability to wick away moisture: it says only that detailed information on the material, care and period of use is on the packaging. According to the card, the belt is used while lifting heavy loads as needed, after putting it on and securing it firmly and comfortably. For external use only; do not use if you are hypersensitive to the components; if allergic reactions occur, stop use and see a doctor.

General information (not a manufacturer's instruction): a dense rigid belt can feel warm in heat and during long work, so do not wear it constantly without need and take breaks; if the skin becomes irritated where the belt fits, consult a specialist.