Athletic clothing is notorious for collecting odor. This really applies to any man-made textile. The reason is that these materials are designed to wick sweat away from your body, so it ends up absorbing a ton of sweat and odor-causing bacteria into the plastic. Natural fibers like cotton and silk absorb sweat too but they don't hang on to odors. It is similar to how a plastic food container will absorb smells but glass containers do not. They are coming out with new fabric technologies that are supposed to cut down on the odor (although this is usually just a treatment that wears off over time), and there are special laundry soaps designed for use with technical fabrics like these.
Not everyone will notice the odors (due to differences in body chemistry, sense of smell, frequency of laundering and type of detergent used), but it doesn't mean anything is wrong with you or your shirt. Just be sure to take good care of these clothes by washing them in cold water with the right detergent, never putting them in the dryer, and allowing them to air out properly after each use (don't just wad them into a gym bag and let them sit for days).
Fitness Minutes: (17,093)
34 4/15/13 12:41 P
Well! That's an interesting question! I happen to be wearing my UnderArmour right now....did 90 mins on the treadmill so far. (I like it cuz it helps minimize the boob jiggling...) And I just took a sniff...and no. No stinky pits. :0)
Fitness Minutes: (4,162)
2 4/15/13 10:14 A
Nope :) Congrats on your RNY...a new chapter in your life is beginning! (I work with RNY patients).
4/15/13 9:23 A
Fitness Minutes: (69,867)
3,526 4/15/13 12:45 A
Does anyone else find that Under Armour shirts make their arm pits smell funky?