Specifications：
Fiber contents: 25% stretch nylon, 75% neoprene foam

The deluxe waist belt is made of highest grade neoprene, covered
with stretch nylon on both sides for your comfort In many cases, this
helps to rid unwanted inches caused by excess water weight in this
area. Plus, your own body heat provides constant moisture for
relaxing lower back muscles.

It's so comfortable you can wear it under clothing. Great for waking,
running, aerobics, and general sports activity. The quick, easy,
and economical way to increase the effectiveness of your weight
reduction program. Helps give support to lower back, eliminate
excess water weight.