Small
| Size | Weight | Chest Circumference |
| Small | 80-115 lbs (36-52kg) | About 28-32 inches (71-81cm) |
| Medium | 115-165 lbs (52-75kg) | About 32-36 inches (81-91cm) |
| Large | 165-250 lbs (75-114kg) | About 36-48 inches (91-121cm) |
*All Posture Perfect braces come with adjustable straps that can be fit to your preferred level of comfort. If you are between sizes and cannot decide, we recommend going with the larger size, as our braces do tend to run on the smaller side in these instances.