The Mobile Society Men Funkionsunterwäsche T-Shirt (Sports Apparel)
My T-Shirts (about 5 black, white 5 greyed out) are since 3+ years of use and each time the 100+ Waeschesack at 60 degrees Celsius have since estimated washed. Use under his shirt in the office and for sport. Failure: 0 - no solution, no seams broken