Moisture-wicking underwear for men who sweat – even when
sitting, commuting, or working all day.
SwampButt Underwear performance undergarments are made from a blend of lycra and polyester fibers and chelated silver. SwampButt Underwear fits snuggly, does not droop or bunch up in a wet knot between the thighs like traditional men’s underwear does. SwampButt Underwear is made in the USA.
How the undergarment works and what it is made of are related. First, there is the phenomena of ‘wicking’ which is the way moisture travels across a larger area of fabric. The more and further moisture (in this case sweat) can disperse across a surface, the faster it can evaporate. Imagine a squeegee pulling water across a windshield. When spread to a larger surface are, the water on the windshield evaporates faster. Or push rain water across a drive way or parking lot into a larger surface area and it also evaporates faster.
The same thing happens with our garment. Sweat wicks across a larger area and evaporates faster because of this. The rate of wicking is related to the materials and the way sweat spreads across them. Polyester fibers are hydrophobic because they are really plastic and will not absorb moisture. Our performance undergarments are made from lycra and polyester fibers. The brief style from cotton and lycra.
Buying underwear online can feel tricky. If your first pair does not fit or feel right, contact us within 30 days and we’ll help make it right. Need help choosing a size? Check the size chart or contact us before ordering.
Remember, free shipping on orders on $35.00 or more!
SwampButt Underwear Scale of Sultry College Football Predictions for Week 8 October 24, 2026 – Could August’s heat and humidity still influence who wins in October? SwampButt Underwear is exploring
SwampButt Underwear is exploring that question through its Scale of Sultry, a weather-based system that measures combinations of heat and humidity.
For those last minute gifts or the ones you may have forgotten about. The SwampButt Underwear Gift Card is perfect for Christmas or any occasion. Shipping is free because these cards are sent via e-mail. These cards will not expire, always redeemable!
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We do too. So please subscribe to the SwampButt Underwear Newsletter. After you sign up we can stop doing this.
