You've heard time and time again that poor posture creates a poor back. Perhaps you feel your work chair is uncomfortable for your back, but you don't want to complain to the boss or demand a new chair. The new Angel Sales PosturePro Lumbar Support is a good solution to increase your back support, without paying hundreds of dollars for a new chair. It may not look like much -- just a mesh chair back add-on -- but there are more than 47 people who vouch for its excellence on Amazon, where you can purchase the product for just $12.87.

The look of the Angel Sales PosturePro Lumbar Support is pretty basic: it's a curved black mesh body supported by a metal frame that affixes to other chairs by elastic bands, which can be stretched to fit a car seat, recliner or office work chair. The lightweight nature of this portable chair-back makes it a versatile piece to take with you from home to the car and to the office, if you don't want to buy more than one.

The device is flexible enough to lean back on but supportive enough to reduce tension at the base of the spine. You will feel more relaxed and alert with better circulation and comfort from this back support.

Overall, Amazon reviewers give the Angel Sales PosturePro Lumbar Support 4.2 stars out of 5. One reviewer comments that many of the car support systems are too bulky and push him too far forward to sit comfortably, although the Angel Sales device is "perfect" for compact cars.

The mesh provides adequate air flow to prevent the dreaded "sweaty back" caused by some of the more plush back supports in the summer months. Another reviewer remarks that he likes how the lumbar support is flexible but does not compress like some of the other supports he's tried. Another reviewer says the support didn't work on the office chair so much but worked wonders in the car.

Not everyone was thrilled with the Angel Sales PosturePro Lumbar Support. K.M. Johnson from San Antonio, Texas went so far as to call it a "new torture device," positing that its arch "has you bending over backwards" and will actually do more harm than good. A number of other reviewers commented that the elastic bands broke easily (two people said on the first day, in fact!) or that the support slips around the chair and requires too much adjustment. "I spent more time putting it back into place than I did resting on it," reports one reviewer from New York.