Every catalogue has a size chart in the back index
If you are not familiar with the garments you are selecting, then please ensure you check the size charts. They are very easy to read once you understand the modern measurements

Click on this link to get to the catalogues
https://bigbranding.com.au/catalogues-2020/
Click on the catalogue of your choice and search for the size chart
Tip: Most size charts can be located at the back of the catalogue