SEA and SKY PJ Tactical Outdoor Helmet Standard Edition for Airsoft Paintball Fast PARARESCUE training, search and rescue operations, hiking or other outdoor sports helmet essential equipment.Compared with other outdoor helmet, rapid series of advantages and characteristics Super ABSKnob size adjustment Fast PARARESCUE helmet, the helmet is equipped with two different sizes of EPP buffer, 1/2 " and 3/4 " to facilitate the users to configure FAST PARARESCUE mechanical Optimization Design of the helmet via the knob to adjust the way, gently Twist the knob to tighten the head space, extreme stability of the helmet design for COMTAC pickup / SORDIN noise communication Headsets can be placed on the helmet, eliminating the trouble needs of each helmet Form is based on the ability to connect FAST PARARESCUE helmet lights, camera, night vision equipment