The REV'IT! Tornado 4 H2O sits at the premium end of the adventure textile jacket market — positioned as a jacket that eliminates the traditional compromise between breathable summer riding and genuine wet-weather protection. REV'IT's claim is a jacket that manages extreme heat during the day and torrential downpours by afternoon without requiring a bag full of alternatives.

This claim is one of motorcycling's most frequently made and least frequently delivered. After a full riding season including summer touring in southern Spain (38°C) and multiple rain events in Scotland, the Tornado 4 H2O comes closer to delivering it than any jacket in its category.

Airflow: PWR|mesh and 600D Polyester Construction

The Tornado 4's outer layer combines PWR|mesh panels (REV'IT's proprietary structured mesh fabric with a higher open-weave density than standard textile mesh) across the chest, sides, and upper back with 600D polyester reinforcement zones across the shoulders, elbows, and forearm areas that face the road in a fall.

The mesh-to-protection balance matters: jackets that maximise airflow tend to do so by removing material from the zones that require impact protection. The Tornado 4 keeps mesh panels away from structural armour locations, which means the airflow benefit doesn't compromise the protection geometry.

Real-world airflow performance: At 80 km/h in 38°C ambient temperature (without the waterproof liner installed), the Tornado 4 is genuinely comfortable. Air flows through the chest and side mesh, around the armour inserts, and exits through the rear mesh panels. Riding at these temperatures and speeds in full gear without significant discomfort is a meaningful capability.

Below 70 km/h in heavy urban traffic: Mesh jackets lose their airflow advantage when speed drops below the threshold where ram air drives meaningful flow. In stationary traffic at 38°C, the Tornado 4 is warm — unavoidably so, because the human body is generating heat faster than passive ventilation can remove it.

CE Level 2 Armour

The Tornado 4 H2O ships with CE Level 2 armour in the shoulders and elbows — the highest consumer protection certification available. CE Level 2 requires the armour to transmit an average force of no more than 9 kN under standardised impact testing, versus the Level 1 standard of 18 kN.

The difference is significant. Level 2 armour in the shoulders and elbows means meaningfully more protection at the high-consequence impact zones than the Level 1 armour many competing jackets at this price point use.

Back protector: A pocket for a back protector is included; a CE Level 1 protector is supplied. An upgrade to a Level 2 back protector (REV'IT's Seesoft RV, approximately $60) is strongly recommended. The pocket fits the upgrade, and for a jacket at this price point used in ADV touring, the back protector quality should match the shoulder and elbow armour standard.

Armour comfort: The Level 2 inserts are slightly bulkier than Level 1 alternatives. In the shoulders, this is unnoticeable once riding. At the elbows, longer-armed riders may find the insert positioning requires adjustment — the strap-and-pocket retention system allows repositioning, and a 5-minute fit session on first wear resolves this.

The Hydratex Waterproof Liner

The Hydratex liner is the jacket's waterproof system — a separately removable membrane that zips into the main jacket shell. This is different from a fixed laminated construction (like a Gore-Tex product) and from carrying a separate waterproof overjacket.

Installation: The liner zips into place in approximately 90 seconds and stores in its own chest pocket when not required, adding minimal pack volume.

Performance in heavy rain (3-hour Scottish touring session): Completely dry interior throughout. Hydratex's membrane construction is genuinely waterproof, not merely water-resistant. Cuff seals and collar closure management is required by the rider — the liner seals at the zip closures but water ingress at the wrists and neck depends on correct fastening technique.

Breathability with liner installed: Significantly reduced compared to mesh-only configuration. With the liner in, the Tornado 4 becomes a warm jacket above 18°C ambient — the mesh's airflow advantage is negated by the membrane. This is the fundamental physics of waterproof membranes: they block water ingress in both directions.

The realistic use case: Below 18°C or in rain, install the liner. Above 18°C in dry conditions, remove it. The system works well when you can predict the weather; it requires a roadside stop when conditions change unexpectedly.

Touring Ergonomics and Adjustment

The Tornado 4 H2O is designed for extended riding, and its adjustment system reflects this. Waist adjustment straps, sleeve length adjustment, and a connection zip for compatible REV'IT! trouser integration combine to allow meaningful fit customisation.

Arm length: The jacket runs slightly long in the arm compared to typical civilian garment sizing — by design, to maintain armour position in a riding rather than standing position. Riders should size based on chest measurement rather than arm length and use the sleeve adjustment if needed.

Collar and neck design: The high collar closes with a magnetic snap and provides meaningful wind seal above 100 km/h. In upright riding positions on naked bikes, this is a significant comfort factor on cold or wet rides.

Pros and Cons

Pros:

  • Genuine CE Level 2 at shoulders and elbows — not Level 1 with a Level 2 option
  • PWR|mesh airflow is among the best in the adventure jacket category
  • Hydratex liner provides truly waterproof protection (not water-resistant)
  • Liner packs into its own chest pocket — minimal bulk when removed
  • Comprehensive adjustment system for genuine touring ergonomics
  • Robust 600D protective panels in high-abrasion zones

Cons:

  • Back protector upgrade required to match the armour quality standard of the rest of the jacket
  • Liner reduces breathability significantly — warm above 18°C with it installed
  • Price ($380–$430) is at the top of the non-laminated adventure jacket segment
  • The liner/shell system requires a stop to transition — not ideal when weather changes rapidly

Final Verdict

Category Score
Ventilation (without liner) 9/10
Waterproof Performance 9/10
CE Level 2 Protection 9.5/10
Touring Ergonomics 8.5/10
Build Quality 9/10
Value for Money 7.5/10
Overall 8.8/10

The REV'IT! Tornado 4 H2O is the best non-laminated adventure textile jacket currently available. Its combination of genuine CE Level 2 shoulder and elbow armour, excellent mesh ventilation, and reliable waterproof liner sets a standard that most competitors don't meet. The back protector upgrade cost and the breathability reduction with the liner in are real considerations — factor both into the total ownership cost. For riders who spend meaningful time in mixed conditions across seasons, the Tornado 4 delivers on its multi-season promise more convincingly than any alternative at this price.