Even though, my Lacoste T-shirts which are 100% cotton and tell me not to tumble dry which I did once just because I need them to shrink a bit so I can get a better bit! So, now should I keep on tumble drying them and so, will they keep on shrinking if I keep on doing it or should I tumble dry on low? If I can't tumble dry them anymore then is there faster way for them to dry without hanging them out to dry?