To order the correct cap size, watch this video: Cap size video or follow these directions:

Because of the extra handling required, and the very high shipping fees for caps, we have had to begin charging a $5 fee plus shipping cost to exchange any Battalion Cap. Please take the time to measure before placing an order. And, if you have any questions, please contact us.

Ideally, try on a cap to best determine your size. In the absence of a try-on, follow these steps:
STEP 1: Use a tape measure to measure around your head: - across your brow (approx 1" above eye brows) - slightly above your ears - keeping the tape parallel to the floor - this measurement is a "two-person" event and is nearly impossible to accurately do by yourself For best results, use a plastic/cloth tape measure. Alternately, you may use a piece of string or cord and then measure the length of the cord.
STEP 2: Divide the measurement in inches by 3.14 to obtain your cap size, rounding UP to the nearest 1/8". Don't like math? Use our sizing chart! HEAD – INCHES CAP SIZE 20 3/8" 6 1/2 20 3/4" 6 5/8 21 1/8" 6 3/4 21 1/2" 6 7/8 22" 7 22 3/8" 7 1/8 22 3/4" 7 1/4 23 1/8" 7 3/8 23 1/2" 7 1/2 24" 7 5/8
	STEP 3: Consider the shape of your head. Service caps are preshaped to an average oval shape. If you have a more narrow or round head than "average", consider adjusting up to the next higher size. Upon receipt, your battalion cap should fit snug, but not too tight. Notice that the cap is parallel to the ground and is approximately one inch above the eye brows and ears.