Step One: Using the fit tape

A measuring tape is an excellent tool to determine the correct circumference of the user's head in centimeters and get a rough idea of what helmet size will fit them best.

1.) Have the user stand facing you while looking straight ahead. If you don't want to make direct eye contact stare at the uni-brow and try not to laugh. (Tip: when fitting small children it is helpful to kneel in front of them so you are at eye level.)
2.) Using both hands, hold the measuring tape at each end with the centimeter marks facing away from you.
3.) Place the fit tape behind the user's head just above the ears. This is where it starts to get a little intimate.
4.) Wrap the side in your right hand around to the front of their forehead so the end of the tape is centered between (and just above) the eyebrows.
5.) Wrap the side in your left hand around (just above the ears and brow) to overlap the end of the tape with a snug fit. Read the measurement at the end of the tape to determine circumference measurement in centimeters.
6.) Remove measuring tape and record the measurement. This number can be used to narrow the helmet size selection using the helmet-sizing chart below.

You have now determined a starting point for the fitting procedure. This measurement is a guideline. The actual helmet the user winds up with will be determined by the following steps and may or may not be the size initially indicated by the measuring tape exercise.

Step Two: Putting on the helmet

Now we get the user to try the helmet on their damn heads. Rental customers should be assisted in this step by the certified technician at the rental facility.

1.) Have the user hold the helmet by the straps on both sides so that the top of the helmet is facing the floor and the front of the helmet is facing his or her body. (Tip: have user undo any ponytails or other hair arrangements that may hinder fit of helmet.)
2.) While pulling outward on the straps, the user should place the front edge of the helmet just above their brow and roll the helmet onto their head from front to back. This step should result in the front of the helmet being positioned level above the user's eyebrows. MAKE SURE THE FRONT IS LOW ON THE FOREHEAD (OTHERWISE NO SIZE WILL FIT OR PROTECT YOU CORRECTLY). (Tip: when assisting children, be careful of ears when rolling the helmet on.)
3.) Make sure the helmet is seated all the way down on the head. Interaction with the consumer is very important during this step. Asking a few simple questions about how the helmet feels (i.e. - Does the top of the helmet touch the crown of your head?)

Step Three: Check for gaps

Once the helmet is on the user's head it is time to check for comfort and gaps. If user indicates immediately that helmet is way too tight, remove and replace with next larger size and continue with Step Three.

1.) Comfort padding on the inside of the helmet should be flush with the forehead with no major gaps. Remember, gaps are for gapers.
2.) The back of the helmet should not cover the nape of the neck.
3.) Adjust chinstrap so it is snug but not restrictive.
4.) The highest level of performance and added protection will be achieved by a snug fit.

Step Four: The Roll Test

This step is especially important with children, as it is not always easy to gauge a snug fit through verbal exchanges.

1.) With the chinstrap fastened, try to gently roll the helmet off the user's head in both a front to back and side-to-side direction. If the skin on the user's forehead moves as you roll the helmet, the user has a good fit.
2.) If helmet rolls front to back or side to side with obvious ease, remove the helmet and try next size smaller.
3.) Grab the helmet with both hands and gently try to twist it left to right. Again, if the helmet fits correctly the skin on your forehead will move a bit with the helmet.
4.) If helmet twists with obvious ease, remove the helmet and try next size smaller.
5.) DO NOT OVERSIZE!

Step Five: Proper Use

1.) Be sure the helmet is fitting above the eyebrows in such a way that the user's goggles (if he or she has them) are fitting the user's face properly while wearing the helmet.
2.) There should be minimal or no gaps between the top of the helmet and the goggles. Remember, gaps are for chumps.
3.) The helmet should not be pushing the goggles down on the nose. This will not only create discomfort and obstruction of vision but it will also destroy any remaining style points that your user may have had.