Boombah Batting Helmet Sizing

Head Circumference Hat Size Helmet Model
19 1/2" 6 1/4" BBH2SP-JR (Defcon Sleek Profile JR), BBH2-JR (Defcon JR)
19 7/8" 6 3/8" BBH2SP-JR (Defcon Sleek Profile JR), BBH2-JR (Defcon JR)
20 1/4" 6 1/2" BBH2SP-JR (Defcon Sleek Profile JR), BBH2-JR (Defcon JR)
20 3/4" 6 5/8" BBH2SP-JR (Defcon Sleek Profile JR), BBH2-JR (Defcon JR), BBHD2 OSFM (Deflector 2 OSFM), BBH1 OSFM (Deflector OSFM)
21 1/8" 6 3/4" BBH2SP-JR (Defcon Sleek Profile JR), BBH2-JR (Defcon JR), BBHD2 OSFM (Deflector 2 OSFM), BBH1 OSFM (Deflector OSFM)
21 1/2" 6 7/8" BBH2SP-JR (Defcon Sleek Profile JR), BBH2-JR (Defcon JR), BBHD2 OSFM (Deflector 2 OSFM), BBH1 OSFM (Deflector OSFM)
21 7/8" 7" BBH2SP-SR (Defcon Sleek Profile SR), BBH2-SR (Defcon SR), BBHD2 OSFM (Deflector 2 OSFM), BBH1 OSFM (Deflector OSFM)
22 1/4" 7 1/8" BBH2SP-SR (Defcon Sleek Profile SR), BBH2-SR (Defcon SR), BBHD2 OSFM (Deflector 2 OSFM), BBH1 OSFM (Deflector OSFM)
22 5/8" 7 1/4" BBH2SP-SR (Defcon Sleek Profile SR), BBH2-SR (Defcon SR), BBHD2 OSFM (Deflector 2 OSFM), BBH1 OSFM (Deflector OSFM)
23" 7 3/8" BBH2SP-SR (Defcon Sleek Profile SR), BBH2-SR (Defcon SR), BBHD2 OSFM (Deflector 2 OSFM), BBH1 OSFM (Deflector OSFM)
23 1/2" 7 1/2" BBH2SP-SR (Defcon Sleek Profile SR), BBH2-SR (Defcon SR), BBHD2 OSFM (Deflector 2 OSFM), BBH1 OSFM (Deflector OSFM)
23 7/8" 7 5/8" BBH2SP-SR (Defcon Sleek Profile SR), BBH2-SR (Defcon SR), BBHD2 OSFM (Deflector 2 OSFM), BBH1 OSFM (Deflector OSFM)
24 1/4" 7 3/4" BBH2SP-SR (Defcon Sleek Profile SR), BBH2-SR (Defcon SR), BBHD2 OSFM (Deflector 2 OSFM), BBH1 OSFM (Deflector OSFM)

* BBH2SP Defcon Sleek Profile has an overall slightly snugger fit than BBH2 Defcon
* BBHD2 Deflector 2 has an overall slightly looser fit than BBH1 original Deflector Helmet


Sizing Guide

How to Measure Your Head

The most effective way to determine what helmet size to select is to measure the circumference of head to find hat size. Measure around your head directly above your ears with a fabric tape measure.

Batting Helmet Sizing Guides