01
Project AERIS · Alpine helmet
Year 2025
Role Concept · Industrial · Prototyping

A helmet that keeps breathing after the fall.

AERIS is a snow-sports helmet with an integrated airbag array and a 1.5 L oxygen reserve — designed to keep alpine riders alive through the first critical minutes after a buried fall, long enough for patrol to reach them.

00Renderings

AERIS, in the field.

Product renders on-site — the helmet as it's meant to be worn, before the rest of the case study walks you through how it got there.

AERIS helmet rendering — close-up detail 01. Close detail 01
AERIS helmet rendering — close-up detail 02. Close detail 02
01The multi-task helmet

Three lifelines, one shell.

Three lifelines engineered into a single shell — impact absorption, a breathing-air reserve, and an always-on illumination system. Scroll through the walkthrough to see each of them.

AERIS helmet — three-quarter render on black
02Context

Most snow helmets stop at impact. The minutes after impact are where riders actually die.

Skier buried in snow after an alpine fall — the six-to-fifteen-minute survival window AERIS is designed for.
Keep an airway open, keep a sealed oxygen reserve near the face, soften the forces a rider absorbs — without making the helmet bigger, heavier, or colder than what a skier already wears.
03What if

What if the helmet didn't just stop the impact — what if it kept you breathing after it?

Concept · A · Airbag array

Distribute the hit, then cradle the head.

Concept · B · Oxygen reserve

A breathable six-minute window, on the helmet.

Sizing study · oxygen reserve volume

How much oxygen fits on a helmet — and how long does it last?

Reserve
0.5 L
1.0 L
1.5 L
2.0 L
3.0 L
Calm-breath window
~2 min
~4 min
~6 min
~8 min
~12 min
Added helmet mass
+40 g
+78 g
+112 g
+146 g
+210 g
Form factor
Under-liner
Chin-bar
Chin-bar
Chin + rear
External
Call
Too short
Borderline
Best balance
Heavy
Breaks form
04Market landscape

Who sells protection — and what they leave out.

Every serious snow brand has a flagship impact helmet. Every serious brand charges $250–$500 for it. None of them do anything after the first impact.

POC snow helmet
POCSweden · impact focus
HEAD snow helmet
HEADAT · all-mountain
Burton snow helmet
BurtonUSA · snowboard
Capability
POC / Smith
HEAD / Giro
AERIS
Impact shell
MIPS + EPS foam
MIPS + EPS foam
Hybrid PC shell + MIPS
Post-impact protection
— none
— none
8-cell airbag array
Oxygen support
— none
— none
1.5 L sealed reserve
Signal / rescue aid
— none
— none
LED distress ring
Price band
$250 – $420
$180 – $350
$380 target
05Mood board

Cinematic, alpine, and decisively red.

The visual language borrows from automotive safety — carbon-black shell, high-gloss dome, single alpine-red accent where the system wakes up. Calm on the slope; obvious on the snow.

Alpine-red accent reference
Carbon-black shell surface
High-gloss dome light-study
Automotive-safety silhouette
Impact-array form reference
Alpine environment palette
Red-on-black visual tension
Helmet detail reference
Gear-system aesthetic
E7313A
B0B0B4
B9262D
121214
7A0B11
3A3A3C
06Sketches

From silhouette to system, by hand.

Before any CAD, the two bets — airbag array and oxygen reserve — had to fit on a helmet shape a rider would actually wear. This sheet was the first place the silhouette, the venting, and the chin-bar oxygen module sat together on paper.

Hand-drawn helmet ideation sheet — silhouettes, venting, and chin-bar oxygen module
07Material study

A shell that can take the hit and carry the system.

Five candidates ran through impact, weight, cost, and moldability. The PC-hybrid sat in the middle of every axis — production-ready, strong enough, and moldable enough to host the airbag layout.

ABS
Entry shell
ImpactLow
WeightHeavy
Cost$
MoldEasy
Polycarbonate
Mainstream shell
ImpactMedium
WeightMedium
Cost$$
MoldEasy
Selected
PC + ABS hybrid
Best-balance shell
ImpactHigh
WeightMedium
Cost$$
MoldEasy
Fiberglass
Race shell
ImpactHigh
WeightMedium
Cost$$$
MoldHard
Carbon fiber
Premium shell
ImpactVery high
WeightLight
Cost$$$$
MoldHard
08Iterations

Five iterations — each one fixed what the last one broke.

Every revision came from a crit session, ski-patrol feedback, or a bench test. The final shape was the fifth answer to the same question.

01

3D Modeling 1.0

Side view — early 3D model Rear view — early 3D model
Feedback1. Multiple airbags could increase the available oxygen supply.
2. However, there is no defined breathing interface or clear place for the user to inhale the oxygen.
02

3D Printing

Front view — 3D-printed shell on head Rear view — 3D-printed shell Top view — 3D-printed shell
Feedback1. It is still too heavy.
2. However, there is no defined breathing interface or clear place for the user to inhale the oxygen.
03

3D Modeling With Feedback

Side view — refined model Side view with alignment guides
FeedbackLighter wear, streamlined safety. Designed for comfort, engineered for core protection.
04

Real Life Mock-up

Front view — white physical mock-up Side view — white physical mock-up
Feedback1. Prioritizes comprehensive crash safety as its core.
2. Featuring as many as nine independent airbags.
09Arduino application

A full-rim LED system that makes the rider visible from every angle.

White LEDs up front light the line of travel; red LEDs along the back make the rider legible from behind — a single continuous ring driven by an Arduino controller.

Arduino-controlled LED strip running around the full rim of the prototype helmet.
Front white LED lighting on the prototype helmet.
Front light

White LEDs — forward visibility

A bright white arc across the brow throws light onto the trail and signals the rider's heading to anyone approaching from the front.

Rear red LED lighting on the prototype helmet.
Rear light

Red LEDs — rear visibility

Red pixels along the rear of the rim keep the rider visible to anyone following — the same ring doubles as a distress beacon on impact.

aero_guard.ino
// AERIS · full-rim LED + impact distress
#include <Wire.h>
#include <MPU6050.h>
#include <FastLED.h>

const uint8_t LED_PIN   = 6;
const uint8_t NUM_LEDS  = 24;
const float   G_THRESH  = 8.5;  // g

MPU6050 imu;
CRGB    ring[NUM_LEDS];

void setup() {
  FastLED.addLeds<WS2812B, LED_PIN, GRB>(ring, NUM_LEDS);
  imu.initialize();
  setRidingMode();        // white front · red rear
}

void loop() {
  float g = imu.getAccelMagnitudeG();
  if (g > G_THRESH) {
    fireAirbagArray();    // 17 cells · parallel
    distressRing(CRGB::Red);
  }
}
Arduino controller board wired to the helmet's LED strip and breadboard.
  • 1Arduino Uno R3
  • 2LED light (WS2812B)
  • 3Breadboard
10Anatomy

Seven systems, one helmet.

An exploded breakdown of every layer keeping the skier alive.

Exploded view of the AERIS helmet showing its seven primary systems.
01

Air Bags

An integrated 8-airbag array offers supplementary protection in high-impact moments.

03

Outer Protective Shell

A high-gloss composite shell resisting abrasion and point impacts on the slope.

05

Illumination System

Integrated control module — battery, chips, and the central controller for the airbag system.

07

Comfort Padding

Shaped memory-foam liner cushions the head and keeps the shell aligned while worn.

02

Structural Dome

Load-bearing inner frame transferring impact energy outward from the skull.

04

Rubber Seal

A pressurised gasket isolating the internal systems from snow and moisture.

06

Air Storage System

A 1.5 L oxygen reserve — 6 additional minutes of breathing, raising survival probability by 44%.

11Scenario

How "AERIS" is going to save your life.

Scroll down to play the story one frame at a time.

Skier standing on the slope, about to drop in.
Ch. 01 — The Drop-in Disaster never sends a warning.
Skier carving fast down the slope.
Ch. 02 — Speed A single decision, at full speed.
Skier fallen in the snow.
Ch. 03 — Impact Reaction time runs out.
Air cushion chamber inflates around the head on impact.
Ch. 04 — Deployment In milliseconds, an air-cushion chamber forms around the head.
Rider face-down in the snow with airway open.
Ch. 05 — The Airway Breathing stays stable, even buried.
Rider rescued and riding out on a snowmobile, helmet still deployed.
Ch. 06 — AERIS Survival, by design.
Rescue success rate · sidecountry fall scenario
+44%

Modelled increase in rescue success rate during the first fifteen minutes of a buried fall — the combined effect of the airbag array and the 1.5 L oxygen reserve.

AERIS — helmet closing hero shot
AERIS · Final

AERIS.

A single object carrying a structural dome, an airbag array, and an air-storage system.

Where this came from

Rescue in snow environments — the research behind AERIS