I think we can agree that the 50’s in mens fashion was about getting lighter. Very mildly expanding the menswear color palette with print while keeping the broad shoulder and cinched waist look of casual wear was the mode. That is the very look the warmer months call for. Something that looks good as put together and free.
You can get that with this 1950, 1960s inspired cotton shirt from Shop Terminology. To modernize the look, it’s best worn untucked but the button down sides are a great addition to help keep the shirt from looking boxed cut which used to be standard for men’s clothing.