It is well known that PPE is the least preferred option on the hierarchy of controls, but it is no less important than any other level of control when it is required. Therefore, it is important that any PPE is appropriately selected, worn and maintained. This becomes even more critical when the level of required protection is highly dependent on how effectively the PPE is fitted and worn by a worker such as close-fitting respiratory protective equipment (RPE) and hearing protection devices (HPD). Studies have found that 50-80% of workers fail to properly use the PPE provided. Achieving the expected and required protection is a real issue in the workplace. Fit is an often ignored component of the correct application of PPE for individual workers. One size definitely does not fit all and this must be resolved to identify a product that fits the individual appropriately. This presentation will look at PPE selection considerations, why PPE is not worn, importance of fit and assessing fit.