Faster evaporation from the Lycra/Spandex fabric used to make SwampButt Underwear™.
The forecast for your backside
Scale of Sultry 2.0
Turn heat, humidity and sunshine into one brutally honest comfort score.

No installation required
Use the calculator right here
Enter your local conditions. Your Sultry Score updates instantly.
Your sultry score9.9/10
Extremely sultry
Sun-Adjusted Feels Like127°FHeat index plus the effect of your selected sun exposure
Peak sticky conditions: high apparent heat, heavy humidity, and limited drying relief.
“Rufus has melted into the swamp.”
DrySwampy
Cotton underwear dries much more slowly because the fabric holds sweat like a sponge. You’ll have a sweaty, soggy bottom longer in the same style of cotton undies your grandfather wore.
