Think for a moment about what makes a good marriage. Your list probably includes things like commitment, devotion, compassion, compromise and honesty—all ingredients for lasting love. Unfortunately, for many Americans, just having these relationship traits isn't enough to make their commitment count. In many states, they also need to be of different genders.

But we don't believe love follows those limits, and neither does Levi Strauss & Co. The classic clothing company has teamed up with the Human Rights Campaign in the fight for marriage equality—and they're showing their support with a line of T's, created exclusively for the HRC.

The shirts, which bear the slogan "All Love is Equal," are pure Americana in design. One shows two denim-clad cowboys, raising a hat to their newly wed status. The other depicts a happy couple of ladies, showing off their fierce heels and sweet bouquet. The graphics are clever and the message is clear: true love is a true classic.

100% of the proceeds from each t-shirt will go to HRC's fight for LGBT equality. Want to wear your heart on your sleeve? These special edition shirts retail for $35 and are available online in the HRC store.