NSA Helm Vented D-811

Key Features

1. Vented Shell for Cooling:
   • Primary Feature: The helmet shell includes ventilation holes (vents) located on the crown.
   • Benefit: These vents promote excellent air circulation, helping to dissipate heat and moisture buildup inside the helmet. This makes the D-811 much cooler and more comfortable for prolonged use, especially in tropical or high-temperature environments.
2. National Standard Compliance:
   • SNI Certification: The helmet is certified under the Indonesian National Standard (SNI), affirming its ability to withstand vertical impact and provide adequate protection.
   • Design: It meets the Type I classification (top impact protection).
3. Lightweight Construction:
   • Material: Constructed from durable, lightweight materials, primarily HDPE (High-Density Polyethylene).
   • Benefit: The lightweight design (typically around $380$–$400$ grams) reduces user fatigue and strain on the neck.
4. Comfortable Suspension System:
   • Fastrack Ratchet (Option): The most desirable option, allowing for quick, single-handed, secure size adjustment via a dial mechanism on the back.
   • Staz-On (Slide Lock): A simpler, less expensive slide-and-lock suspension option.
5. Aesthetic and Functional Design:
   • Features a modern, sporty cap-style design that workers often prefer over traditional full-brim helmets.
   • Offers protection against impacts and often maintains basic electrical resistance (certified by SNI).