Reddit mentions of Champion Men's Tech Performance Long Boxer Brief, Black, Small

Although you may not want used clothes, don't be afraid to go to some thrift shops! A lot of them will have stuff NWT that is heavily discounted if you know where to look.

You don't want to skimp on silk underwear/compression shorts. Plan to spend the majority of your money here, since it's around a sensitive area. Plus if you get cheap compression shorts, you run the risk of rubbing holes in them where your thighs meet :P Some good brands to check out would be Under Armour, Champion, and Hanes. Champion can run really expensive though, so watch out. Stores to look at for cheaper prices are Walmart, Kohls, Target, etc. Ebay also might have some for cheap, but of course make sure they're new with tags. Also, do you specifically want SILK boxers? Those aren't going to come cheap. Knit ones are much easier to find for <5 or in packs for <10. Here's a link to compression shorts on Amazon, they might seem a little expensive but you're not going to get any cheaper without sacrificing quality. Uniqlo's Arisim line also has a really good rep over on /r/malefashionadvice.

For athletic shorts, you could probably find some in here. On Amazon try this or this or this (you get the idea).

For shirts, [Target](http://www.target.com/s?searchTerm=graphic+shirt&category=9976707|All|matchallpartial+rel+ALL|men&kwr=y&lnk=lnav_narrow%20by%20category_2#navigation=true&searchTerm=graphic+shirt&sortBy=PriceLow&Nao=0&viewType=medium&category=9976707|All|matchallpartial rel ALL|men) seems to have some in the $5-10 range. Amazon also does for under $7. I would try to see if you can pick up some new/lightly used ones at thrift shops though, as they normally go for $1 or so.

Jimi Hendrix shirt

RHCP

Sublime

BfmV

Sorry that the graphic tees are expensive, maybe buy one a month? 6dollarshirts was a good place to visit, keep checking there. Aliexpress also has a lot of cheap ones and free shipping, but shipping might take a while.