1.   And I have the sweat stains to prove it.

2.   As the afternoon wore on, large sweat stains appeared under her arms, but she did not quit until she had reached every last person.

3.   A little more than halfway through the fall movie season, and you can practically see the sweat stains on those well-cut Hollywood suits.

4.   His Stetson had reassuring sweat stains.

5.   Wonder if sweat stains are hard to clean.

6.   He has visible sweat stains under his arms.