TM 1-8415-215-12&P
CHAPTER 3
MAINTENANCE INSTRUCTIONS
Section I. HELMET SIZING AND FITTING
3-1. General. This section contains instructions for helmet sizing and fitting and replacing components.
3-2. Helmet Sizing. Helmet sizing and TPL selection are based upon circumference as follows:
HELMET SIZE
TPL SIZE
MAXIMUM HEAD CIRCUMFERENCE (INCHES)*
Regular
Small/regular
less than 21.5
Regular
Regular
21.5 - 22.4
X-Large
X-Large
greater than 22.4
*Rule-of-thumb measurements only. At times, the next larger or smaller size may be required to achieve a satisfactory
fit.
Figure 3-1. Head Circumference For Helmet Sizing
3-1
