The image renders instantly in the browser and you can preview the models just by clicking a few buttons. Bleu Flamme has also added an Auto Size Me app that allows you to build a custom shirt ...

One AYR shirt, the Deep End shirt, is a favorite among editors, models, and celebrities. Learn how it became a go-to button-down, then shop the AYR shirt here.

Last November, model and author Chrissy Teigen took to Twitter and asked in a poll, “Is it a button up or button down?” Of the 220,000-plus respondents, 66 percent said button-up , and 34 ...