the collar

Lay the shirt flat on it's back and measure from the center of the collar button to the furthest edge of the buttonhole.

NOTE: If you are comfortable with your standard collar size, enter that here instead

the sleeve

Lay the sleeve flat and measure from the top of the shoulder to the end of the cuff.

the chest

Lay the shirt flat (buttoned) and measure from one underarm to the other.

the waist

Lay the shirt flat (buttoned) and measure across the narrowest part of the shirt at the waistlne.

the bottom

Lay the shirt flat (buttoned) and measure from one of the bottom seams to the other.

the back

Lay the shirt flat (buttoned) on it's front and measure from one edge of the shoulder to the other.

NOTE: If you are comfortable with your standard collar size, enter that here instead.

the sleeve width

Lay the sleeve flat and measure from the top of the shoulder to the end of the cuff.

the cuffs

Place the cuff on a flat surface. Place the measuring tape on the outer edge of the button hole and measure across to the center of the button.

the length

Lay the shirt flat (buttoned) on its front and measure from the edge of the collar to the edge of the shoulder.

Shoulders

Normal (Default)

The majority of men fall into this category. You should not experience any of the below issues with your existing off-the-rack shirts.

Sloping

Some men (weightlifters in particular) have a more pronounced angle in their shoulders that causes the fabric to stretch from the trapezoid to the lower chest, resulting in a pulling of the fabric along with a less than ideal fit.

Square

Men with very little angle in their shoulders will see lots of wrinkles / lines along the neck due to excess fabric bunching up.