Camera helmet Cloud-9 for skydiving

Description

Camerman helmet.
Made of fiberglass.
The inner lining is made of Outlast material. This material reacts to temperature changes by maintaining the optimal temperature inside the helmet.
Top and side camera platform. I
nternal socket for audible altimeters.
Color: black, navy blue, blue, red, white.
Sizes:
S (54 cm : 21 1/4 inches),  M (55 cm : 21 1/2 inches), L (56-57 cm : 22-22 1/2 inches), XL (58 cm : 22 3/4 inches)
.
How to measure head circumference?
Wrap the measuring tape 1.5-2.5 cm / 1/2-1 inches above your eyebrows, slightly above your ears, and at the point on the back of your head that gives you your greatest circumference. Measure your head several times to avoid errors and find the maximum circumference.