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The ski helmet Giro Ratio™ combines a hard shell with lightweight EPS foam, an In Form Fit system, Thermostat Control adjustable ventilation, and Stack Vent technology. Comfortable, compatible with goggles and Outdoor Tech audio – reliable on the slopes.

Basic data

Brand Giro
Country of origin of the brand USA
Sport Skiing, Snowboard
Gender Male, Woman
Season Autumn/Winter
Leading colour Navy blue
Model/product code Ratio GR-7172889
Type of Product Helmet
Purpose All mountain
Code 2000183162

Design

Design Hard Shell
Shell material Polystyrene (EPS), Polycarbonate (PC), Synthetic polymer (ABS)
Lining EPS inlay

Fastening

Fastening type Buckle
Adjustment system In Form™ Fit System

Viewfinder

Viewfinder No

Product details

Ventilation Active
Technologies Thermostat Control™, In Form™ Fit System, Stack Vent Technology
Mips No
Weight 570 g (M)

Warnings and producer's data

Standards, certificates CE-EN1077
Producer Giro Sports Design, Inc. | 1001 E. Larkspur Lane, Suite 200, Scotts Valley, CA 95066, USA | info@giro.com | AMP SOURCE Siulczyńska Spk | Wielkopiecowa 6 42-200 Częstochowa Polska | info@amppolska.pl

Ski helmet Giro Ratio matte indigo (GR-7172889)

The Giro Ratio matte indigo ski helmet integrates advanced ventilation and precise fit technologies, responding to the needs of all-mountain users. Its durable Hard Shell construction employs a combination of a synthetic polymer (ABS) shell, polycarbonate, and EPS foam padding, providing protection that meets CE-EN1077 standards.

Advanced ventilation and adjustment systems

The Stack Vent Technology and active ventilation in the Giro Ratio model enable optimal airflow, minimising condensation inside the helmet even during intense descents. The Thermostat Control™ system allows for individual adjustment of the incoming air volume, enhancing user comfort in varying weather conditions. The In Form™ Fit System ensures precise fit, allowing for easy adjustment of the helmet circumference even while wearing gloves.

Safety and ergonomic design

The Hard Shell construction of the Giro Ratio is made from a synthetic polymer (ABS) and polycarbonate shell, guaranteeing optimal impact resistance. The EPS padding effectively absorbs energy in the event of a collision, meeting the stringent requirements of the CE-EN1077 standard for ski helmets. The ergonomic shape and soft Soft ear pads improve thermal comfort and usability during all-day activities on the slopes.

Giro Ratio matte indigo ski helmet - features:

  • Hard Shell construction with a synthetic polymer (ABS) and polycarbonate shell;
  • EPS padding that effectively absorbs impact energy;
  • Stack Vent Technology providing efficient air ventilation;
  • Thermostat Control™ system for individual ventilation adjustment;
  • In Form™ Fit System for increased fit precision;
  • Active ventilation maintaining thermal comfort while skiing;
  • Soft ear pads enhancing user comfort;
  • Quick-release buckle for fast and secure helmet attachment;
  • Designed for all-mountain activities;
  • Suitable for both women and men.
Thermostat Control™
Thermostat Control™ is a ventilation control system used in helmets that allows the user to instantly adjust airflow with a simple and small button located on the outside of the helmet. This technology allows the wearer to fine-tune the level of cooling and ventilation according to individual needs and changing weather conditions.
In Form™ Fit System
The In Form™ Fit System is a helmet fit system that allows for quick and easy size adjustments, even when wearing gloves. An ergonomic dial located at the base of the helmet provides up to 6 cm of adjustment. The system also incorporates a vertical adjustment feature, allowing the helmet to fit better over ski goggles.
Stack Vent Technology
The Stack Vent technology was developed based on research which showed that most of the warm air that causes evaporation escapes through the central upper opening of the goggles. Aligning the Stack Vent in the helmet with the central opening in the goggles helps keep the goggles clean and fog-free, while ensuring full integration of the helmet with the goggles.
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Ski helmet Giro Ratio matte indigo

Ski helmet Giro Ratio matte indigo

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    Size S M L XL
    Head circumference (cm) 52-55,5 55,5-59 59-62,5 62,5-65
    You save €20.00 €109.99
    €89.99
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