Description
Giro Isode MIPS II Helmet — Full Review & Features
Gravel riding demands a lot from a helmet. You need something light enough to stay comfortable on long days out, well-ventilated enough to handle the climbs, and protective enough to give you confidence when the terrain gets unpredictable. The Giro Isode MIPS II ticks all three boxes — and at £84.99, it does so without asking you to spend a fortune.
With a compact, aerodynamic shape clearly inspired by Giro’s top-end road helmets, the Isode MIPS II looks every bit as good as it performs. Whether you’re grinding up a forestry track, blasting along a bridleway, or mixing tarmac with trail on a mixed-surface adventure ride, this is a helmet that’ll keep up with you.
MIPS® Evolve Core Protection
The Isode MIPS II features Giro’s MIPS® Evolve Core system — an updated version of the well-established MIPS slip-plane technology. It’s designed to help reduce rotational forces on the brain during angled impacts, which is the kind of impact most commonly seen in real-world crashes. The Evolve Core version integrates more neatly into the helmet’s fit system than older MIPS designs, so you get the added protection without any compromise in comfort or feel.
Exceptional Ventilation for Long Rides
One of the standout features of the Isode II is its deep internal channelling system. Large vents work together with internal airflow channels to pull cool air across your scalp and expel warm air efficiently — the kind of ventilation you’d normally only find on premium helmets. On a warm day in the New Forest or a big gravel sportive, you’ll really notice the difference compared to a more basic lid.
In-Mould Construction — Light and Strong
Like the best helmets at this price point, the Isode MIPS II uses in-mould construction, which fuses a tough polycarbonate outer shell directly with the EPS foam liner. The result is a helmet that’s lighter and more structurally efficient than traditional designs, with better ventilation built in as part of the process rather than as an afterthought.
Roc Loc® Sport Fit System
Dialling in a great fit is quick and easy thanks to the Roc Loc® Sport system. A single click-dial at the rear gives you 7cm of adjustment range, operable with one hand — so you can fine-tune the fit mid-ride without stopping. It’s also compatible with a ponytail, and once you’ve found your sweet spot it stays firmly in place no matter how rough the track gets.
Universal Adult Fit
The Isode MIPS II comes in a Universal Adult size, designed to fit heads measuring 54–61 cm. Giro’s Universal Fit approach means the helmet is shaped to suit a wide range of head shapes straight out of the box — no faff trying multiple sizes, just adjust the dial and get out riding.
Who Is It For?
The Giro Isode MIPS II is ideal for gravel riders and mixed-terrain cyclists who want a performance-inspired helmet with proper protection and excellent ventilation, without pushing into premium price territory. If you’re looking for a step up from a basic sport helmet — something that looks sharp, rides cool, and keeps you well-protected on everything from gravel tracks to country lanes — the Isode MIPS II at £84.99 is a genuinely hard helmet to beat at this price.