My daily wardrobe features a rotation of 15 T-shirts, paired with another rotation of longsleeves for cold seasons, all in plain generic colors to make it easy

My daily wardrobe features a rotation of 15 T-shirts, paired with another rotation of longsleeves for cold seasons, all in plain generic colors to make it easy to match. My accounting data says I got those shirts in August 2018. I have worn one of these 15 T-shirts everyday since then (with very few exceptions, e.g. when formal wear was called for). Let's round that to 2.5 years, i.e. 912 days, i.e. about 60 wears per shirt. I'm not seeing any significant degradation on these shirts, so I can easily see myself wearing these at least another 3 years, which would be over 130 wears per shirt. For reference, this is the model I'm wearing right now: http://www.gildan.se/en/o61001-en-grey http://www.gildan.se/en/o61001-en-grey