From Freesewing:
Description
These boxer briefs combine style and comfort. I've worn no other boxers for years, and have about 40 pair of these.
Talking about pairs, these will give you all the support you find in briefs, without making you look like an 8 year-old boy.
Unless you are the type of person who likes to wear loose boxers (if you are, you're doing it wrong) your search for a boxer pattern ends here.
Not hard to make
If you have a serger, this pattern will be easy to make.
In the absence of a serger, you'll have a bit more work, but it will still be relatively straightforward.
Even if you have no sewing experience, help is available, so you'll be fine.
Design by Joost
This pattern is designed by me (joost) and based on my own experience of wearing boxers, and figuring out what works, and what doesn't.