Cotton or polyester?
The real trade-off
Sweat stains show up instantly on a cotton t-shirt, but polyester develops odors faster. We’ve long suspected this, and now research confirms it. Scientists tested 26 t-shirts after one hour of spinning class, storing them for 28 hours. Bacteria proliferated quicker on polyester, leading to stronger smells.
No need to worry
Polyester sportswear remains a smart choice. Sweat itself is odorless until it meets bacteria. Stick to fresh shirts and change promptly after workouts, and you’ll avoid issues.
What bothers you more: visible sweat stains or lingering odors?
