I love your second T shirt, the cut out on the back is so beautiful and perfect for the hot weather in Ukraine now.

The engineer one is great, I think my husband would love that, and btw, he has a maths degree just like you!!!

Don't worry about ironing your t-shirts, they're supposed to be casual shabby looking, at least that's the excuse I give myself for not ironing. As to buying clothes for my husband, he tends to choose his own t-shirts, but normally asks me for my opinion before he buys other clothes