Your next buying step
Giro Eclipse Pro
Model: Eclipse Pro · US configuration
Your choices from the finder
Review the product, then choose a seller
Compare offers for this model
The Eclipse Pro is an evidence-supported option to compare for an adult road rider within Giro's Medium circumference guide who specifically wants Spherical Technology. Giro's aero claim is manufacturer-stated; the model still needs an exact fit check.
Search this model on Amazon ↗Compare the exact model, package, seller, current price and return terms. Search results can include other versions.
As an Amazon Associate I earn from qualifying purchases. This is an affiliate link.
Assessment scenario: Adult road ride with a Spherical design
An assessment scenario for an adult road rider with a 57 cm measured circumference who wants Giro's documented Spherical/Mips design. A size-chart match is a reason to try the exact helmet on, not proof of fit or injury protection.
Explore this buying guide ↗Why consider this model?
- Giro categorizes the standard US style as a road half-shell and describes Spherical Technology powered by Mips.
- The observed S/M/L sizes map through Giro's general chart to 51–63 cm; 57 cm is inside the Medium guide range, not a guarantee of fit.
- The source specifies 15 vents, a Roc Loc 5.5 Air system and a Medium weight of 280 g; those are manufacturer facts, not independent performance results.
Tradeoffs to weigh
- The 17% faster claim is Giro's own comparison; the captured page provides no protocol or independent aero result.
- The US page's Medium CPSC weight phrase is not an explicit compliance statement in the captured certification text, so a separate CPSC requirement is not satisfied by this fact record.
- Vent count does not establish cooling; no head-shape profile or model-specific fit test was found.
Check these before ordering
- Match standard style 100000000300000152 and exact size/color; do not confuse it with Eclipse Pro Special Edition style 100000000300000157.
- Inspect the physical helmet's CPSC marking and instructions if that standard is required; do not treat the weight note as certification proof.
- Try it on level and secure using Giro's instructions and verify seller return terms if the fit is uncertain.
- Check current Giro/CPSC notices and avoid a used helmet with unknown crash history.