Helmet, Altimeter, Audible: The Accessory Buyer's Guide

For newly licensed jumpers, the rush to own gear focuses almost entirely on the container and canopy. But before that first rig, there's a separate set of tools you need — the ones that keep you aware, protected, and oriented in freefall: your helmet, altimeter, and audible.

They get filed under "accessories," but in a sport where seconds separate stable flight from a hard landing, choosing them right is a safety decision, not a style choice. Here's the technology, the certifications, and the setup that actually matters.

1. The Helmet: Open-Face vs. Full-Face & The Certifications

A helmet does two jobs: protects your skull on hard landings or during exits, and gives you a stable platform to mount altimeters and comms gear. First choice: open-face or full-face.

Open-Face Helmets (The Visual and Cultural Choice)

Open-face helmets — a Cookie Fuel, a Tonfly ICE — leave your eyes and mouth exposed.

• Pros: excellent peripheral vision, natural wind sensation, easy talking under canopy or in the plane. They're a common recommendation for student training and early licensed jumps precisely because nothing blocks your visual field.
• Cons: no protection from cold wind, eye-watering speed, or flying debris — you need separate goggles.

Full-Face Helmets (The Modern Standard)

Full-face helmets — a Cookie G4, a KISS — carry an integrated polycarbonate visor that seals your face.

• Pros: full wind protection, no goggles needed, warmer in cold weather, quieter in freefall, and real protection against impact — a freeflyer's knee during a collision, or a knock during exit.
• Cons: the visor can fog in humid weather or on cold morning loads, and it trims peripheral vision slightly.

The Safety Factor That Actually Matters: CE EN966

Don't assume every helmet marketed for skydiving is an impact helmet. For years, the industry-standard Cookie G3 wasn't formally certified for impact protection at all — it was rated as a "parachute helmet," built to prevent scratches and line snags, nothing more.

The newer Cookie G4 carries CE EN966 certification (helmets for airborne sports), which means it's been through shock-absorption and penetration testing, not just snag-prevention design.

If you're jumping the tunnel or dense group freefly loads, a CE EN966-certified helmet is worth the premium.

A Note on Helmet Cutaway Systems

Mounting a camera to your helmet? Install a helmet cutaway system first. A camera mount is a real snag hazard — if your bridle or lines wrap around it during deployment, a standard chinstrap traps your head and that leads to fatal neck injuries. A cutaway system lets you jettison the whole helmet with one pull.

2. The Altimeter: Analog vs. Digital Wrist-Mounts

Your altimeter is your primary visual link to the ground. Without it, you're flying blind.

Analog Altimeters (The Bulletproof Classic)

Analog units — an Alti-2 Galaxy — use a mechanical, barometric needle sweeping a physical dial.

• Why they work: zero battery requirements, tough, and the sweeping needle reads by peripheral vision alone — you don't read numbers, you just know when the needle hits the orange wedge, it's time to pull.
• Limits: bulkier, sensitive to atmospheric zero-point shifts (you calibrate to "zero" on the ground before every jump), no logging.

Digital Altimeters (The Precision Standard)

Digital units — an L&B Viso II+ or Alti-2 Ares II — show exact altitude on an LCD screen.

• Why they work: high precision, digital logbook (exit altitude, deployment altitude, freefall time, speed), automatic ground-zero calibration, and backlighting on some models for night jumps.
• Limits: battery management is now your problem — a dead battery mid-load is a real distraction — and some jumpers find reading digits harder than scanning a needle under a high-performance canopy.

Whichever you pick, put it on your first-rig checklist and get comfortable reading it before you need it under pressure.

3. The Audible: Your Acoustic Safety Net

An audible altimeter — a "dytter" — is a small unit that slides into a pocket over your ear inside the helmet and fires acoustic alarms at pre-set altitudes.

It's a backup, not a replacement for your visual altimeter. It exists to snap you back if you lose track of time on a complex skydive. It is not your primary altitude indicator, and treating it as one is how people miss pull altitude.

Setting Your Alarms

Modern audibles — the L&B Solo, L&B Quattro, Optima II — support up to three freefall alarms. The standard sport-jumper configuration:

Hear the hard-deck tone while still in freefall and you're closing fast on the firing altitude of your AAD. No functional main overhead at that point means emergency procedures, immediately.

Advanced Features: Canopy Alarms

Premium units like the L&B Optima II add a separate set of canopy alarms — subtle tones at low altitudes (1,000, 600, 300 feet) that help you time a consistent landing pattern: downwind, base, final.

The Gear That's Boring Until It Isn't

None of this is exciting to shop for compared to a canopy color scheme. That's exactly why people skip it — a scratched-up open-face helmet and an uncalibrated analog altimeter feel fine until the one day they don't. Certification and battery discipline aren't paranoia here; they're the difference between an audible that works when your brain is task-saturated at 4,000 feet and one that doesn't.

Looking for Verified Gear and Accessories?

Skip the cracked helmets and questionable digital altimeters from unverified sellers on social media. Every listing on HornyGorilla is condition-verified, so you can build your gear bag with confidence.

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Checked against USPA SIM § 5-2, CEN EN966 (Helmets for Airborne Sports), Larsen & Brusgaard's Viso II+ and Protrack II manuals, and Alti-2's Galaxy and Ares II technical specifications.