Giro Syntax MIPS review

The Syntax MIPS is the road helmet on this list that balances weight, cooling and price best. Giro lists 280 grams for a medium, close to helmets that cost nearly twice as much, and its Wind Tunnel design combines shell vents with internal exhaust channels. The Roc Loc 5 Air Mips system does two jobs: it integrates MIPS for rotational impact protection, and it holds the helmet slightly off the top of the head so air can pass over the scalp. Fit tension and fore-aft tilt adjust with one hand. Giro describes slightly deeper coverage than a typical race helmet in a slim shape, plus a Hardbody lower wrap fused to the EPS liner for durability. Ionic+ padding uses silver for odor control. The tradeoffs: the certifications section shows CE EN 1078 rather than CPSC, it costs $159.95, and it has no documented light mount for night commutes.

Who it is for

Road riders who want a lighter, cooler helmet for long rides without paying flagship prices.

Price

$159.95 at the Giro US store when checked.

Syntax Mips Helmet STYLE #: 100000000300000101 $159.95
Quoted from the vendor pricing page on November 8, 2026.

Key features

• Integrated MIPS through the Roc Loc 5 Air Mips fit system
• Roc Loc 5 Air suspends the helmet slightly off the skull for airflow
• Wind Tunnel ventilation with shell vents and internal exhaust channels
• In-Mold Hardbody lower wrap fused to the EPS liner
• Ionic+ padding with silver for odor protection

Strengths and weaknesses

• Strength: 280 grams in a medium, among the lighter helmets here
• Strength: One-handed adjustment of fit tension and fore-aft tilt
• Strength: Slightly deeper coverage than a typical race helmet
• Weakness: Giro's page lists CE EN 1078 under certifications, not CPSC
• Weakness: More than twice the price of the Align II
• Weakness: No light mount documented

Key facts

• Price: $159.95
• Rotational protection: Integrated MIPS
• Weight: 280 g (size M)
• Certification listed: CE EN 1078
• Sizes: S, M, L, XL

Where it ranks

Giro Syntax MIPS is No. 2 in our Best Bike Helmets verdict.