⟲ 360° — drag meThe facts.
| Manufacturer | Knox |
|---|---|
| Safety certification | EN 1621-2:2014 Level 2 |
| Gender | Unisex |
| Features | Ventilation channels; fixed shoulder straps |
| Intended use | Track/trackday; spirited road riding; everyday/touring |
DescriptionThe whole story▼
When a track day or a fast road ride demands nothing less than your best, the Knox Aegis back protector delivers the coverage and certified Level 2 protection to match. One of the best-selling Level 2 back protectors on the market, the Aegis pairs an intelligent sliding-panel spine construction with honeycomb impact absorption — engineered for riders who refuse to compromise between protection and freedom of movement.
Key Features
- CE-certified to EN 1621-2:2014 Level 2 — the highest standard for back protection in motorcycle sport
- Flexible, sliding spine panel design maximises coverage without restricting movement at speed
- Honeycomb impact-absorption technology with additional EVA foam layer for layered energy management
- Open-cell structure and ventilation channels keep air circulating during intense track or road use
- Removable and machine-washable spacer-mesh inner lining for post-session freshness
- Optionally expandable with the Knox Micro-Lock chest protector for full torso coverage
Track-Ready Construction
The Aegis was designed from the outset with race and trackday riding in mind. Its sliding, segmented spine panel follows every lean, corner-entry lunge and emergency movement your body makes, maintaining full spinal coverage where a rigid board-style protector would gap. The honeycomb cell structure dissipates impact energy across the widest possible surface area, while the supplementary EVA foam layer adds a secondary absorption stage — a combination that achieves Level 2 certification with genuine margin to spare.
The Race variant adds dedicated coccyx protection, addressing one of the most vulnerable impact zones in a highside or lowside scenario. If you spend serious time on circuit, that additional panel is more than a box-ticking exercise.
All-Weather Performance
The Aegis is tested and rated for use across the full range of conditions a rider is likely to encounter. Protection performance remains consistent from -20°C to +40°C, so whether you are warming up on a cold morning trackday or pushing through a summer afternoon session, the materials behave exactly as certified. There are no soft-weather caveats here.
Ventilation and Comfort
Comfort Features
- Open-cell panel structure promotes continuous airflow across the back
- Premium spacer-mesh inner lining wicks heat away from the body
- Removable lining is machine-washable for easy maintenance
- Slim, low-profile silhouette sits unobtrusively inside any jacket
Maximum protection does not have to mean a sweaty, bulky slab on your back. The Aegis keeps its profile flat and its airflow generous — a detail that matters enormously on a long track day or a multi-hour touring run.
Fit and Adjustability
Ergonomics and Fit
- Multi-stage waist belt system locks the protector in position under braking and acceleration
- Additional lateral adjustment straps for a precise, tailored fit
- Adjustable shoulder straps with quick-release buckles for fast on/off
- Straps can be worn cross-body for improved comfort under certain jacket cuts
- Removable kidney armour panel for personalised support
Six size options — spanning Ladies S through Men's L plus the dedicated Men's M Race configuration with coccyx protection — are sized by torso length rather than generic S/M/L clothing sizes. Measure your torso length before ordering to find your optimal panel count and coverage area.
Versatility Beyond the Track
The Aegis is equally at home on the road, on a touring run or in a different sport entirely. Approved use cases include:
- Track and circuit riding
- Spirited road riding
- Everyday commuting and touring
- Mountain biking
- Snowboarding
- Skiing
The protector comes ready for optional Micro-Lock chest protector integration, and the Race version adds the coccyx panel for maximum circuit coverage.
Sizes and Fit Guide
- Unisex design with dedicated Ladies and Men's sizing
- Panel count scales with torso length for correct spinal coverage
- Available in: 5 Plates (Ladies S), 6 Plates (Ladies L), 7 Plates (Men's S), 8 Plates (Men's M), 8 Plates Race (Men's M with coccyx protection), 9 Plates (Men's L)
- Tip: measure your torso length from the base of the neck to the waist before selecting your size
Care Instructions
- Inner lining is removable and machine-washable
- Do not bleach
- Do not tumble dry
- Air dry only
Specifications
| Specification | Detail |
|---|---|
| Brand | Knox |
| Certification | EN 1621-2:2014 Level 2 |
| Gender | Unisex |
| Features | Ventilation channels; fixed shoulder straps |
| Intended use | Track/trackday; spirited road riding; everyday/touring |
What's includedEverything in the box▼
- 1x Aegis back protector
Head to toe.
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Measure your head circumference about one centimetre above your eyebrows and compare it with the size chart on this page. Between sizes? Choose the smaller one — the padding beds in with use.
Yes — it’s tested and approved to the current ECE 22.06 standard and road-legal across the EU.
Most of our touring and sport helmets are Pinlock-ready and many include the insert. Check the ‘What’s in the box’ section on this page for this model.
Yes — the cheek pads are channelled so the arms of your glasses slide in comfortably.
Take out the washable lining and hand-wash it in lukewarm water. Clean the shell and visor with a soft cloth and water only — never solvents.
Our team will personally help you choose the right gear or part — around 24h for a reply.