You can safely play with confidence. ■ Inner layer W mesh ■ SG mark passing product (liability included) 【Heat protection structure】Heat protection structure uses insulation between the main body and the interior material to reduce the temperature of the interior parts that come in contact with the scalp by about 3 degrees Celsius. (*Results are based on performance evaluations based on the Mizuno method, and the effect may vary depending on the environment used. Denatured ABS resin, made in China; Brand: Mizuno (Mizuno); Product Number: 1DJHC211; Product Name: General Purpose Soft Catcher Helmet Heat Protection Structure; Color: 01 (white) 09 (black) 14 (navy) 16 (pastel navy) 27 (blue) 62 (red); Size: S 21.9 - 21.7 inches (53 cm); M (57 cm); L (57 cm). -59cm)O (23.2 - 24.0 inches (59 - 61 cm)) XO (24.0 - 24.8 inches (61 - 63 cm)) *When large impact such as dead balls, the surface of the helmet will be dented and the interior styrofoam will break. Also, please do not use a helmet that has a big impact even if you cannot see any damage to its appearance. The color of the product photos may differ slightly from the actual product depending on the operating system, browser, display, etc. Please be aware of this before purchasing.