
Boom is a Latvian brand focused on producing perfect protectors and helmets at great prices.
The helmet is primarily designed for freestyle sports such as skateboarding, freestyle scooters, BMX, etc.Size of the helmet is 58-61 mm.
Specifications:
How to properly wear a helmet:

The helmet should fit comfortably – it must not be too tight to cause pressure, nor too loose to move during normal movement.
Position the helmet so that it is not too far back (does not protect the forehead) or too far forward (restricts vision).
Secure the straps under the chin so that they are tight but do not restrict breathing.
Measure the head circumference with a tailor's tape around the widest part of the head – usually across the forehead and the back of the head.
Boom Helmet Size Chart:
| Size | Head circumference in cm |
| S | 51-54 |
| M | 55-58 |
| L | 58-61 |