How Big & Tall Button-Down Shirts Should Fit
Size button-downs by neck and shirt length, not chest alone. KingSize cuts up to 10XL with a longer tail and roomier yoke for real Big & Tall proportions.
Measure your neck first — it's the size that matters most
Wrap a soft tape around the base of your neck where a collar sits, then add half an inch for breathing room. That number is your shirt size, not your chest measurement. A shirt sized to chest alone routinely runs tight at the collar on a Big & Tall frame, even when the body of the shirt fits fine.
KingSize button-downs are best sized using your neck, chest and waist measurements for this reason. If your neck measures between sizes, size up — a collar that's snug at the button is the fastest way to end up sending a shirt back.
Measure shirt length separately from chest and neck
Our KingSize shirt lengths are measured from the top center of the back of your neck, straight down to the hemline. Big & Tall men often need a longer or wider shirt than a standard-sized shirt from another brand — measuring catches this before you order and lessens returns.
- Big & Tall shirt lengths are clearly called out on the product page.
What a Big & Tall yoke and shirttail actually do
The yoke is the panel across your upper back and shoulders. Cut too narrow, it pulls every time you reach forward or turn at the shoulder. KingSize's Solid Wrinkle-Resistant Short Sleeve Button Down and Plaid Wrinkle-Resistant Short Sleeve Button Down are built with a roomier yoke and a longer shirttail specifically for Big & Tall proportions — the tail stays tucked through a full day of movement instead of pulling loose.
A longer shirttail matters most on taller frames: a shirt cut for a standard torso rides up out of the waistband by mid-morning no matter how well the chest fits.
Wrinkle-resistant fabric that holds the cut, wash after wash
Both shirts above use a wrinkle-resistant cotton/polyester blend that keeps its shape through machine washing — the fabric holds the collar roll and the yoke structure instead of going soft and shapeless after a few wears. That matters more on a Big & Tall cut, where a fabric that loses structure loses the fit along with it.
How to check the fit once it arrives
Button the collar and run two fingers inside it — snug but not tight is correct. Raise both arms overhead; the shirttail should stay tucked. Reach across your body; the yoke should move with you, not pull at the seam. If any of those fail, the fix is almost always the neck or sleeve measurement, not a different chest size.
Shop the full lineup in our KingSize button-down shirts collection to compare shirt designs across every style.
Frequently asked questions
What neck size should I buy for a big and tall button-down shirt?
Measure around the base of your neck where a collar sits, then add an inch if you prefer a roomier fit. Your neck measurement, not just your chest size — is the measurement that determines collar comfort.
How do I measure sleeve length for a big and tall dress shirt?
Measure from the center back of your neck, across the shoulder, and down to your wrist bone with your arm relaxed. Compare that total to the sleeve length listed on the product page.
Why does my button-down shirt gap or pull at the buttons?
The chest is sized too small for your frame, or the shirt was cut for a standard body. Reorder using your neck and sleeve measurements and choose a Big & Tall cut with a roomier yoke.