UPDATE: After receiving a second sample of the black caps, we've pulled them from the HOS store. No one had actually ordered one yet, and it's a good thing — the results were very disappointing.
The designs are not embroidered as we originally thought from the description on the site, but printed onto white patches using a "dye sublimation" printing process. Whatever they call it, it sucks. We've started looking for an alternative and will post here when we have it.