Has anyone purchased Sport briefs?

[BriefBro]

I'm about to purchase this brief in either Navy or Black but I'm unsure of the size. the last suit I bought was a Speedo Solar in 32, I now wear a size 34 for pants and my waist measures at 36, but the speedo fits just fine. I probably stretched it out.

So, should I get the size 34 Sport Brief or the size 36?
Just how true to size are they?

I understand the whole sizing down and whatnot, but I don't want a really tight suit.