Have you thought about using one of those fabric softeners designes specifically for black clothing?
My t-shirts last about 3 years. Business-presentable up to a year or so ... that's hundreds of washes considering I cycle through most of my t-shirt stack every 1.5 weeks.
After 5 years they're only good enough for the gym, on account of the fabric becoming weird. The colour is still mostly fine.
Also, I think you're doing something seriously wrong when washing your t-shirts ... you are doing cold washes right? Nothing above 40C and all that ... also, is your washing machine filled with sand or something?
My t-shirts last about 3 years. Business-presentable up to a year or so ... that's hundreds of washes considering I cycle through most of my t-shirt stack every 1.5 weeks.
After 5 years they're only good enough for the gym, on account of the fabric becoming weird. The colour is still mostly fine.
Also, I think you're doing something seriously wrong when washing your t-shirts ... you are doing cold washes right? Nothing above 40C and all that ... also, is your washing machine filled with sand or something?