Place a tape measure slightly above the ear and bring it across the mid forehead completely circling the head about 1 inch above the eyebrows.
Take several measurements to ensure you have the largest size. If a measurement falls inbetween a size, choose the larger size. The helmets come with a range of padding sizes to ensure a snug fit.
Step 2: Purchase, and Try It On
Once you have determined your helmet size, try it on and adjust the straps so it sits correctly. The helmet should be worn level on the head and not slide or move freely when you roll your head side to side. If this happens your helmet is too large. Extra padding (included) should help provide a snug fit.
Do the Push Test. If someone places a palm to your forehead and can push the helmet backwards off your head it is to loose or too large.
Step 3: Proper Fit and Wear
The front of the helmet must sit just above your eyebrows and the back of the helmet should not touch the nape of your neck.
The chin strap should fit snugly but not too tight to cause discomfort. Securely fasten the chin strap and try to roll the helmet off your head. If the skin on your forehead moves slightly, you have a good fit.