But if someone were to ask, chances are, you couldn't tell them how to shrink a shirt—the right way ... Or, you received a well-intentioned gift that doesn't fit quite right.

We recommend that you buy one size larger than usual to achieve the perfect easy fit, especially if you have broader shoulders or a large bust. Luckily, the shirt doesn’t shrink much after washing.

Unlike much of the Heattech line, this T-shirt doesn’t have such a tight fit. “They’re closely fitted without being tight at all,” says digital content creator Carrie Carrollo.