I wear it as a back brace!!
I lift a lot. Both at the gym and at work. This gives me great back support. I like the fact that it's adjustable, so when I need more or less support, I can adjust as needed. I had this on while sitting as well and it helped me sit upright,  proper posture. I'm sure if I continue wearing it for the great  back brave it is, I might see my waist shrink as well. But the sole reason I bought this was for my back!! I was fortunate enough to purchase this item at a discounted price in return for my honest opinion.
Rating: 5 stars