- Chest - Measure under arms around fullest part of chest
- Sleeve - Measure from center back of neck, across shoulder, down length of arm to wrist bone
- Waist - Measure around natural waist line
- Inseam - Measure from crotch down inside of leg to floor (without shoes on)
- Head - Measure around the head, at the largest point
- All measurements are done in inches unless otherwise noted
PLEASE NOTE: THIS IS AN APPROXIMATE GUIDE AND NOT EXACT. THE SHAPE OF YOUR HEAD IS AS IMPORTANT AS YOUR HEAD MEASUREMENT WHICH MAY AFFECT FINAL FIT. A HELMET MUST FIT SNUG.