If you are experiencing the same symptoms at home, it appears that wearing the tactical vest probably is not the reason for your symptoms. You can âget warmâ and when you start to itch on the lower back you might consider visiting your GP to see that back area to identify skin changes (redness etc.) if present. If there are no skin changes present, it can't be allergy but perhaps you are experiencing some type of neurodermatitis. You can also consult a dermatologist about your problem.