Knyx C5 Iso Cricket Helmet
Overview
The Knyx C5 Iso is the engineered product for serious cricketers who demand lightweight construction, uncompromising protection, superior ventilation, and an advanced fit system in a single helmet. Built around a durable impact modified polymer shell and featuring the same innovative Isofit adjustment system found across the entire Knyx Iso range, the C5 Iso makes professional-grade fit technology accessible to a broader range of players. The Isofit ratchet mechanism allows one helmet to accommodate a wide range of head sizes and shapes without the need for fixed sizing, while high-strength steel facial protection and a secure push clip buckle complete a well-specified, reliable helmet for serious club cricketers.
Design and Materials
The C5 Iso is constructed around an impact modified polymer shell with a matte painted finish, providing dependable protection and lasting durability in a lightweight build suited to serious club and developing cricketers. Inside, a high-density EPP liner delivers multi-impact shock absorption, while the Radial Impact Mitigation system handles impacts arriving from every direction using elastic shock absorption. The Isofit ratchet system sits at the core of the internal architecture — rather than being locked into a fixed shell size, players simply turn the dial to adapt the helmet to the precise shape and size of their head, giving a genuinely personalised fit that no standard sizing system can replicate. The Engineered Ventilation System drives continuous cooling airflow through strategic intake and exhaust channels, and KoolForm comfort padding in varied thicknesses adds a further layer of internal comfort. A Neck Shield Pro — built with impact modified polymer and high-density EPP — is included with every helmet.
Key Technologies
Isofit Personalised Adjustment System: A micro-adjustable dial-in ratchet built into the shell that allows a single helmet to fit a wide range of head sizes and shapes. Players turn the ratchet straight out of the box until the fit feels exactly right — no fixed sizes, no compromises, just a secure and personalised hold every time.
Impact Modified Polymer Shell: A lightweight yet durable shell engineered for serious cricketers who need dependable protection and long-lasting performance without the weight of traditional helmet materials.
High Density EPP Liner: A multi-impact absorbing expanded polypropylene liner designed to mitigate extreme impacts and provide consistent protection across repeated use.
Radial Impact Mitigation (RIM): An elastic shock absorption system engineered to handle impacts arriving from every direction, providing comprehensive multi-directional protection at the crease.
Engineered Ventilation System (EVS): Strategically positioned intake and exhaust channels drive continuous cooling airflow across the head, ensuring maximum comfort during extended periods of play.
KoolForm Comfort Liner: Wide-surface moisture-wicking padding included in varied thicknesses, allowing players to fine-tune the internal fit and comfort alongside the Isofit ratchet system for a truly personalised wearing experience.
Reliable Steel Facial Protection: High-strength steel construction delivers durable, impact-resistant facial protection with clear sightlines, offering dependable coverage throughout match and training play.
Push Clip Buckle System: A secure and easy-to-use push clip closure designed for a reliable fit and quick one-handed fastening, keeping players focused on their game rather than their equipment.
Specifications
| Specification |
Details |
| Shell Material |
Impact Modified Polymer |
| Shell Finish |
Matte Painted |
| Liner Material |
High Density Expanded Polypropylene (EPP) |
| Facial Protection |
High-Strength Steel |
| Impact System |
Radial Impact Mitigation (RIM) Elastic System |
| Ventilation |
Engineered Ventilation System (EVS) Channels |
| Fit Adjustment |
Isofit Dial-In Ratchet System |
| Comfort Padding |
KoolForm Foam (Varied Thickness) |
| Buckle System |
Push Clip |
| Neck Shield |
Included — Impact Modified Polymer and High Density EPP |
| Player Level |
Club / Serious Amateur |
VKS Review
The Knyx C5 Iso is a well-rounded helmet that brings the standout Isofit fit system to a more accessible price point without cutting corners on the features that matter most. The impact modified polymer shell is robust and lightweight, and the Isofit ratchet remains one of the most practically useful innovations in the cricket helmet market — dialling in a secure, personalised fit across a wide range of head sizes and shapes within a single shell is something that gives players immediate confidence. The steel grille offers solid, dependable facial protection, the EVS ventilation keeps things comfortable across long sessions, and the push clip buckle provides a quick and reliable fastening. A smart, well-specified choice for serious club cricketers who want more from their helmet.
Q&A Section
Q: Who is the Knyx C5 Iso designed for?
A: It is designed for serious club and amateur cricketers who want lightweight construction, advanced fit technology, and dependable protection in an accessible helmet.
Q: How does the Isofit system work?
A: The Isofit system uses a micro-adjustable dial-in ratchet built into the helmet shell. Players simply turn the ratchet to expand or contract the fit until it feels perfectly secure and comfortable. Because the system accommodates a wide range of head sizes and shapes within a single shell, there is no need to choose between fixed sizes — the helmet adapts to the player rather than the other way around.
Q: Does one size really fit a range of head sizes?
A: Yes, that is the core principle behind the Isofit system. The micro-adjustable ratchet allows the single shell to adapt across a meaningful range of head sizes and shapes, giving every player a secure, personalised fit without the limitations of conventional sizing.
Q: How does the C5 Iso differ from the C5 Iso Pro?
A: The C5 Iso shares the same impact modified polymer shell, Isofit system, RIM protection, and EVS ventilation as the C5 Iso Pro but features a high-strength steel grille and push clip buckle rather than the titanium grille and Maglock magnetic system found on the Pro model.
Q: What does the Radial Impact Mitigation system do?
A: The RIM system uses elastic shock absorption to handle impacts arriving from any angle, providing comprehensive multi-directional protection that goes beyond what a standard liner alone can offer.
Q: Is a neck shield included?
A: Yes, a Neck Shield Pro — constructed from impact modified polymer and high-density EPP — is included with every C5 Iso helmet.
Q: How does the push clip buckle work?
A: The push clip system provides a secure and reliable closure that can be fastened and released quickly with one hand, keeping players focused without fumbling with their chin strap.
Q: How does the ventilation system work?
A: The Engineered Ventilation System uses strategically positioned intake and exhaust channels to drive a continuous flow of cooling air across the head throughout play.
