It works...
If you live alone, it is awkward & difficult (but not impossible) to put it on by yourself. The velcro fasteners that adjust the tension and fit, are strong and I am able to put in on over my head, similar to putting on a sweater or t-shirt.
It is rather effective at applying pressure that makes you conscious of your posture and should improve posture with continued use.
As a next step, I am inclined to consider a similar product that has an additional belt that secures just above the waist.
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