FAST vs. MICH vs. LWH: How to Choose the Right Ballistic Helmet Cut
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Picking a ballistic helmet isn't just about protection level or material. The shell cut — how much of your head and ears it covers — shapes everything from comfort and weight to how well you can run comms gear and night vision. Get this decision wrong and you'll either be fighting your helmet or leaving yourself exposed.
Here's a straight breakdown of the three main cuts and where each one actually makes sense.
High-Cut: The FAST Helmet
The FAST (Future Assault Shell Technology) helmet sits high, leaving the ears and temples exposed above the ear line. It's the go-to for operators who wear communication headsets full-time.
Key advantages:
- Native fit with over-ear headsets like Peltor ComTac and Sordin systems
- Lightest option among the three cuts
- Better airflow and reduced heat buildup during extended wear
- Full ARC rail system for lights, cameras, and accessories
Trade-off: Less lateral and lower-temporal coverage means more exposure to fragmentation from the sides.
Best for: Direct action, CQB, and special operations where active comms and agility are non-negotiable.
→ Browse Kevra Defense FAST series tactical helmets
Mid-Cut: The MICH 2001
The MICH 2001 sits between the two extremes. It covers more of the lower ear and temple area than a FAST cut, while still leaving enough clearance for some over-ear communication setups.
Key advantages:
- Better lateral fragment protection than high-cut
- Compatible with select communication headsets that sit partially over the ear
- More coverage without the bulk of a full-cut shell
Trade-off: Not as headset-friendly as a true high-cut; not as protective as a full-cut. It's a compromise — and that's exactly what some missions require.
Best for: Vehicle crews, specialized patrol units, and operators who need a bit more coverage without sacrificing comms access entirely.
→ Browse Kevra Defense MICH series ballistic helmets
Full-Cut: The MICH 2000 and USMC LWH
Full-cut helmets maximize coverage. The shell extends fully over the ears and down toward the nape of the neck, giving you the largest ballistic surface area of any modern combat helmet.
Key advantages:
- Maximum protection against fragmentation and blast debris
- Covers the lower ear and temporal region fully
- The standard for conventional infantry and high-fragmentation environments
Trade-off: Heavier and hotter than high- or mid-cut options. Mounting over-ear headsets requires external adapters or under-helmet audio systems.
Best for: Ground forces, checkpoint security, and any environment with significant artillery, IED, or fragmentation risk.
→ Browse Kevra Defense full-cut tactical helmets
Material and Rail Integration — Regardless of Cut
Whichever cut you choose, the shell construction matters just as much. Look for:
- Aramid (Kevlar) or UHMWPE construction meeting NIJ Level IIIA as a baseline
- ARC rail system for mounting lights, cameras, and other accessories
- NVG shroud — aluminum or Wilcox-compatible interface — for secure night vision mounting under dynamic movement
- Suspension and retention system that fits your team's sizing requirements
A well-built helmet in the wrong cut will still compromise your mission. A well-chosen cut in a poorly built shell is a liability. Both decisions matter.
Quick Reference: Cut Comparison
| Feature | FAST (High-Cut) | MICH 2001 (Mid-Cut) | MICH 2000 / LWH (Full-Cut) |
|---|---|---|---|
| Ear coverage | None | Partial | Full |
| Weight | Lightest | Medium | Heaviest |
| Headset compatibility | Excellent | Moderate | Limited |
| Fragment protection | Good | Better | Best |
| Typical use | SOF / CQB | Patrol / vehicle | Infantry / high-threat |
About Kevra Defense
Kevra Defense manufactures and exports ballistic helmets, body armor, and tactical protective equipment to military, law enforcement, and security organizations worldwide. Our product lines cover FAST high-cut, MICH mid-cut, and full-cut shells — all built to NIJ IIIA standards with full OEM and custom configuration support.
For procurement inquiries, bulk orders, or OEM customization:
WhatsApp: +86 18170883451 | Email: jinchaowu9@gmail.com | www.kevradefense.com