I'm gonna copy paste from my Quest 2.0 review because everything pretty much pertains to the Ultra as well.

Saxx underwear is the best and their Quest (Ultra) line is great for travel (and everyday). It's very breathable and dries quickly. I bought an extra large and will probably buy large going forward. This does an amazing job at separating the boys without feeling like they are being smothered and sizing down doesn't decrease the cup size! It just kind of tightens up some stuff like under the crotch making the underwear even better at containing everything and stopping chafing. The fabric is very stretchy so sizing down doesn't cut into your legs or waist, it's fantastic.

If there was a draw back, it would be the Quest line doesn't provide much insulation. So it's best for hot weather or traveling. (Ultra doesn't have this problem. It breathes, but not so much that you'd get cold in lower temperatures)

Saxx is the best brand of underwear I've found that utilizes the 3D pouch for your family jewels. It basically has walls on the side and a great size pouch that remains roomy at all sizes. And they don't really come up and "present" the goods like other brands. They separate your business from your legs and contain without feeling like the male equivalent of a push up bra. MyPakage is a close second, but they have a weird shelf that comes up underneath that kind of rests at the base of your man purse. Not comfortable.

The best argument I found for the pouch in underwear is that men aren't flat on the front, stuff pokes out. So why would you wear underwear that is flat on the front? It just smooshes your wedding tackle. These really have changed my life. I'll never buy another brand for as long as they keep this design.