UnderFlex Compression Boxer Briefs for Men: UPF 50 Built into Fabric.

These are pretty fantastic. Light, breathable, comfortable, absolutely everything you'd expect in a pair of performance underwear. They fit well but do not go as far down the leg (I'm 6'1") as the pictures seem to indicate. That's not at all a problem for me as I prefer them the way they actually fit. I bought one pair to try out as something to wear under unlined board shorts and after wearing them for a while I immediately ordered several additional pairs.

Support is great and the briefs are comfortable to wear although because they are made from polyester and spandex seem to retain heat - not uncomfortable, but warmer than a cotton blend, which wouldn't offer the support I'm looking for. I'm wearing these under a form-fitting full-leg rash guard for sun and stinging sea-creature protection. Durability issues will have to wait for a further update.The briefs stay in place and while offering great support do not bind.

The description said that these were good for wearing under boardshorts, implying that they were quick dry, which is why I got them. It turns out, they retain water like crazy. After rinsing them, wringing them out, and hanging them to dry overnight, they were still soaked when I felt them the next morning. Very comfortable, though.

I am a size 29-31 depending on brand. Based on the reviews, I went ahead and bought a medium rather than the small, and I will say it was definitely the right choice. The mediums are plenty tight. Smalls would have cut me in half. ORDER A SIZE UP.Otherwise, they seem to be pretty functional. I wore them under board shorts and they work pretty well.

I bought one pair of these to try them out, and ended up doing extra laundry just so I could wear them again. They are not too tight and not too loose - the fit is perfect. They are so comfortable I forget I am wearing them. They are great to wear to the pool or beach under your bathing suit, and they dry super fast. I bought enough pairs to replace all my old boxers.

I've got to say, I'm hard on my underwear. I hate holy underwear and my lifestyle demands the most from my hidden garments. I wear these guys all day and never adjust. I wear them to work and to the gym and they are the best boxer briefs I've ever owned. They are perfectly supportive and extremely comfortable. No pretense, nothing too commercial and a fantastic fit. I would recommend them to anyone.

XL looked like a small. Runs very small.

Not the widest band. Baleaf is. Similar quality, with one major exception. This product has a narrower waistband, and will curl up.