A lot of cotton is pre-shrunk. Simple as that. Synthetics resist shrinking. The last thing I had shrink on me was a wool sweater, which was over twenty years

A lot of cotton is pre-shrunk. Simple as that. Synthetics resist shrinking. The last thing I had shrink on me was a wool sweater, which was over twenty years ago. I used the hair conditioner trick to stretch it (same as in this article), which sort of worked.