The Ultra Fly are the best boxers with the softest material I have ever worn and have been slowly (over the course of the last 12 months) replacing my entire brief wardrobe with these + the Quest 2.0's buying 1-2 here and there when they're on sale in the lower $20 range.  150% worth it, game changer, weird finding out about these and wondering what the rest of your life would have been like without all that swamp butt from regular cotton briefs.  I still can't get over how soft the Ultra's are - did I say I'm a huge fan?