Briefs so comfortable that you'll forget you're wearing them (disclaimer: not responsible if if you actually forget to wear them). Extremely quick-drying, you can wash a pair at night and they'll be ready to go in the morning.
[main] 89% polyester, 11% spandex [waist] 90% nylon, 10% spandex
low-rise & regular/limited color selection
Despite the super-affordable price tag, these are the most comfortable, best-fitting boxer briefs I have ever owned. They're extremely light, fast-drying, stretchy, and nicely contoured, with a 3D front pouch. Legs are just long enough, they don't ride up or give you wedgies, and a smooth surface that will never pill. I've worn these on multi-day backpacking trips in the Cascades, washing them by hand in the river and 30 mins later in the sun they're dry. I bring three pairs while traveling internationally, toss one pair in the laundry or wash them in a sink (or shower) before bed and in the morning you will have a fresh, dry pair of underwear.
Tip: Go a size up in the low-rise version, might negate the low-rise feature but I think it'll have a better fit overall.