Basic informations
| Category | Cycle helmets for demanding |
|---|---|
| Determination | men's, women's |
| Brand | Giro |
| Catalog number | 39365-255 |
Technical parameters
| Helmet size | S-(51-55), M-(55-59), L-(59-63) |
|---|---|
| Color | black |
| Construction | In-mold, MIPS |
| Season | 2026 |
| Execution | without peak |
| Advanced level | racing |
| Buildable size | adjustable |
| Other | Roc Loc® 5 fastening system, antibacterial Ionic+ linings, ultra-light Slimline straps, reflective elements |
| Sizes | Super Fit™ S (51-55 cm), M (55–59 cm), L (59–63 cm) |
| Weight | 280g (Size M) |
| Ventilation | 15 holes, Wind Tunnel™ |
Product description
Born for Victory: A New Era of Speed.
From sprint triumphs at the Tour de France to record-breaking wins at the Leadville Trail 100 gravel race — the Eclipse Pro represents cutting-edge technology for speed-obsessed cyclists. Created through close collaboration with the world's fastest professionals from the Visma team, it has been repeatedly tuned using CFD simulations in Giro's labs and subsequently verified in the wind tunnel. Result? 17% faster than the legendary Eclipse model.
Offers top-tier protection thanks to Spherical Powered by MIPS technology and Aura II reinforcements. All-day comfort is ensured by 15 Wind Tunnel vents and the DryCore sweat management system in the front padding. Its ultra-low weight rivals even the lightest full-ventilation road helmets — the Eclipse Pro is simply designed for victory.
Designed for everyone who lives for speed: the Eclipse Pro combines our most advanced aerodynamics, top-tier protection, and all-day comfort.
Main parameters:
- Retention System: Roc Loc® 5.5 Air
- Construction: in-mold, Progressive Layering, Spherical Powered by MIPS, Aura reinforcing arch, Nanobead EPS
- Ventilation: 15 Vents, Wind Tunnel™
- Features: Ionic+ Anti-Bacterial Padding, Drycore, Slimline Ultralight Webbing, Reflective Details
- Sizes: Super Fit™ S (51-55 cm), M (55–59 cm), L (59–63 cm)
Technology
-
ROC LOC® 5.5AIR Thanks to its patented design, which keeps the helmet slightly above the crown of the head, Roc Loc® 5.5 Air allows cool air to flow directly over the head, further increasing the efficiency of ventilation and internal channels that dissipate heat from the helmet. Adjustment and settings mimic Roc Loc 5, allowing you to easily fine-tune the tension and tilt of the helmet forward and backward with one hand in seconds. Reflective stickers ensure better visibility.
-
IN-MOLD® Designation of a technological process in which EPS polystyrene foam is pressure-injected into the shell and reinforcements enclosed in the mould. Their connection reinforces the area of the vents and ribs. The result is a compact, uniform, lightweight, safe and very durable helmet.
-
MIPS (Multidirectional Impact Protection System) is a slippery insert between the EPS shell (helmet body) and the inner liners. In the event of an angled impact (for example, if you catch your head on a branch), the helmet's EPS shell will roll a few millimeters over the MIPS layer, protecting your head and brain from the violent rotational jerk.
-
The SUPER FIT™ System is made up of up to four helmet sizes designed to cover a range of different head sizes for all users. Thanks to this system, the helmets of the higher categories are ideally prepared for every rider.
Size chart

























































































