Introduction

SATA independent design, original M top hat shape, top reinforcement

Side ventilation holes, adjustable switching on/off mode

One-piece top band, reduce the head discomfort caused by welding points

Chin strap is connected separately from the inner liner, and the buckle on the lower side can be opened and closed with one hand, and pulled out and adjusted

Knob-type adjustable buckle, suitable for different head circumferences