> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://help.liveheats.com/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# Collecting free T-Shirt sizes in registration

You can collect free T-shirt sizes during event registration via the Event settings > Payments, or for Memberships via Series settings > Memberships using a Custom field set as a drop down at the registration level.

To see how to set this up, check out this quick video tutorial:
${frame}[Collecting free T-shirt sizes](https://www.loom.com/embed/b06b172248c640198d20bc5444ec92eb)