Technical sheet

Giro Source MIPS MTB Helmet

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4 Reviews

14 Questions

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Features of Giro Source MIPS

Product description of Giro Source MIPS MTB Helmet

Description summary

Conquer any trail with the GIRO Source MIPS MTB Helmet. This helmet offers superior protection and performance with deep coverage and aggressive ventilation from 17 vents and internal channeling. The Roc Loc™ 5 Mips fit system with Integrated Mips ensures a secure, comfortable fit while reducing rotational forces. Features include a moto-style adjustable visor and full lower Hardbody durability for rugged adventures. Experience the ultimate in cooling and comfort

CAPABLY EQUIPPED FOR FUN AND ADVENTURE:

The Source™ MIPS® helmet combines advanced performance and protection in a rugged, trail-ready design. Featuring deep coverage with aggressive ventilation from 16 vents coupled with deep internal channeling, it helps keep things cool even when the riding gets rowdy. And with the comfort and secure feel of the Roc Loc 5 fit system with Integrated MIPS® brain protection, plus a moto-style adjustable screw-in visor and full lower Hardbody™ durability, you get a helmet that´s capably equipped for fun and adventure.

Specs:

Mips: Integrated mips (multi-directional impact protection system) - allows you to customize fit/feel for great stability and long-range comfort while providing an added measure of protection from rotational forces in the event of an angled impact

Construction:

- In-mold polycarbonate shell and eps liner
- Polycarbonate hardbody lower shell
- Sport: Cycling
- Visor: Adjustable moto-style screw-in visor
- Number of vents: 16
- Interior/liner type: Coolfit anti-microbial padding
- Ventilation type: 16 wind tunnel vents with internal channeling
- Fit system: Roc loc 5
- Impact liner type: Eps foam liner

Certification:
- U.s.: cpsc bicycle for ages 5+
- E.u.: ce en1078

EN1078 IMPORTANT NOTE This helmet has been built, tested and approved according to the European regulations ECE/ONU R22.05. TRADEINN is not responsible for the use that may be made of this helmet in other countries that are not subject to this European homologation ECE/ONU R22.05, discouraging the use of this in those countries.

Specifications

Manual

Size chart

Technical specifications of Giro Source MIPS

Construction

In-mold Polycarbonate Shell And Eps Liner
Safety system

Integrated Mips
Certifications

Us Cpsc Safety Standard For Bicycle Helmet For Persons Age 5
Weight

351g (size Medium Cpsc)|340g (size Medium Ce)
Ventilation / Breathability

16 Wind Tunnel Vents With Internal Channeling
Adjustment system

Roc Loc 5
Padding

Coolfit Antimicrobial Padding
Closure system

Slimline Webbing
Intended use

Trail
Color

Black
Age

Adult
Helmet Protection

Mips

Features of Giro Source MIPS

Color Black

Color

Black

Age Adult

Age

Adult

Helmet Protection Mips

Helmet Protection

Mips

Key differentiators

Constructed with a full lower Hardbody™ shell for improved durability and an in-mold polycarbonate shell with an EPS liner.

Features an integrated MIPS® brain protection system combined with the Roc Loc 5 fit system for enhanced stability and comfort.

Includes a moto-style, adjustable screw-in visor for adaptable coverage.

Lined with Coolfit™ antimicrobial padding for comfort during long rides.

Offers aggressive ventilation with 16 wind tunnel vents and deep internal channeling to keep you cool on demanding rides.

Technology in Giro Source MIPS MTB Helmet

Energy rating

Warnings

5 / 5

4 Reviews

What our customers are saying about Giro Source MIPS MTB Helmet

This Giro helmet offers excellent quality with a comfortable weight and attractive colors. Its design ensures a secure and safe fit, with enhanced ventilation and rear neck protection compared to previous models. The Roc Loc 5 system provides an adjustable and precise fit. It´s a lightweight, true-to-size option for serious riders seeking reliable performance

Excellent helmet

2024/02/28

Stefano

Very comfortable helmet. Weight and size correspond exactly to the description (size M for head circumference 58 cm, 340 g)

Very comfortable, light, and robust

2026/07/22

Carlos

This helmet stands out for its comfort, is well-ventilated, and you can´t tell you´re wearing it once you adjust it. The weight is very low, which is appreciated. The MIPS system is a plus in case of an accident

Super helm

2024/12/05

Marco

The helmet from Giro fits perfectly and is safe. Additionally, it has a nice look and a cool color. And everything for a absolute fair price.

Giro quality as normal

2024/01/30

Kevin

I have used Giro MTB and snow boarding helmets for nearly15yr and have never been disappointed in their products. I have a large head and the Large (L) is true to size. The Roc Loc 5 system works a treat. Looking forward to using it on the trails

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Include AI Generated questions and answers

2026-09-10

Generated by AI and verified

What are the main safety features of the Giro Source MIPS MTB Helmet?

Answer of Generated by AI and verified

This helmet is engineered for safety on the trail. It features an integrated MIPS (Multi-directional Impact Protection System) to help reduce rotational forces during an angled impact. The construction combines an in-mold polycarbonate shell with an EPS liner and a full lower Hardbody for durability. It also meets the US CPSC safety standard for bicycle helmets for persons age 5 and older.

* Generated by AI based on customer and product data

2026-09-10

Generated by AI and verified

Is the padding in the Giro Source helmet removable for washing?

Answer of Generated by AI and verified

Yes, the helmet is equipped with removable Coolfit anti-microbial padding, which allows for easy cleaning to maintain hygiene and comfort.

* Generated by AI based on customer and product data

2026-09-10

Generated by AI and verified

Does the Giro Source MIPS helmet come with a visor?

Answer of Generated by AI and verified

Yes, this helmet includes an adjustable moto-style screw-in visor to help shield your eyes from sun and trail debris.

* Generated by AI based on customer and product data

2026-09-10

Generated by AI and verified

Is the Giro Source MIPS MTB Helmet worth buying for trail cycling?

Answer of Generated by AI and verified

The Giro Source MIPS MTB Helmet offers advanced protection with its Integrated MIPS technology and Roc Loc 5 fit system, making it a reliable choice for trail cycling users.

* Generated by AI based on customer and product data

2026-09-10

Generated by AI and verified

What type of fit system does the Giro Source MIPS helmet use?

Answer of Generated by AI and verified

The helmet utilizes the Roc Loc 5 fit system. This system allows you to customize the fit and feel for enhanced stability and long-range comfort.

* Generated by AI based on customer and product data

2026-09-10

Generated by AI and verified

How is the Giro Source helmet constructed?

Answer of Generated by AI and verified

The Giro Source helmet features an in-mold construction that fuses a polycarbonate shell to an EPS foam liner. It also includes a polycarbonate Hardbody lower shell for added durability.

* Generated by AI based on customer and product data

2026-09-10

Generated by AI and verified

How many vents does the Giro Source MIPS helmet have?

Answer of Generated by AI and verified

The helmet is equipped with 16 Wind Tunnel vents that work with deep internal channeling to provide aggressive ventilation and help keep you cool while riding.

* Generated by AI based on customer and product data

2026-09-10

Generated by AI and verified

What safety certifications does the Giro Source MIPS helmet have?

Answer of Generated by AI and verified

This helmet is certified to the U.S. CPSC Safety Standard for Bicycle Helmets for Persons Age 5 and Older.

* Generated by AI based on customer and product data

2026-09-10

Generated by AI and verified

What is the weight of the Giro Source MIPS MTB Helmet?

Answer of Generated by AI and verified

The Giro Source MIPS MTB Helmet weighs 351g for the CPSC size medium and 340g for the CE size medium.

* Generated by AI based on customer and product data

2026-09-10

Generated by AI and verified

What type of cycling is the Giro Source MIPS helmet designed for?

Answer of Generated by AI and verified

This helmet is specifically designed for trail riding. Its features, such as deep coverage, aggressive ventilation, and a durable construction, make it well-suited for the demands of mountain biking adventures.

* Generated by AI based on customer and product data

2026-09-10

Generated by AI and verified

Is this helmet suitable for both men and women?

Answer of Generated by AI and verified

Yes, the Giro Source MIPS MTB Helmet has a unisex design and is intended for adult riders.

* Generated by AI based on customer and product data

2026-09-10

Generated by AI and verified

How does the Giro Source MIPS MTB Helmet compare to the Giro Fixture Mips Ii Xl Mtb Helmet?

Answer of Generated by AI and verified

While both helmets feature MIPS technology for enhanced safety, the Giro Source MIPS MTB Helmet offers a Roc Loc 5 fit system and 16 wind tunnel vents for superior ventilation.

* Generated by AI based on customer and product data

2026-07-11

Lilja

The helmet color in the picture is Matte Ano Harbor Blue, but your color designation is Matte Portano Grey. Which color is correct, grey or the blue in the picture? So, is the color in the picture wrong, and if I order, will I get the greyer version?

Answer of Robert

The color is blue as in the photo

* Generated by AI based on customer and product data

2025-08-26

Sönke

What closure system does the helmet have? I´d like a ratchet closure. Thanks for the info.

Answer of Diego

Graduated adjustment with wheel, very precise and practical

* Generated by AI based on customer and product data

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Frequently bought together

Best sellers

Use cases

Trail Mountain Biking 100% Fit

This helmet is purpose-built for the demands of trail riding, offering advanced protection with Integrated MIPS technology for rotational impacts. The adjustable moto-style visor shields from sun and trail debris, while 16 vents provide crucial airflow on strenuous climbs.

Integrated Mips,Adjustable moto-style screw-in visor,16 Wind Tunnel Vents With Internal Channeling,Intended Use: Trail

All-Mountain & Enduro Riding 80% Fit

For all-mountain users, the helmet provides substantial coverage and the confidence of MIPS protection. The Roc Loc 5 fit system ensures a secure, customized fit during aggressive descents and technical sections, while the Coolfit padding helps manage moisture on long rides.

Integrated Mips,Roc Loc 5 fit system,Coolfit Anti-Microbial Padding

Cross-Country (XC) Cycling 70% Fit

The ventilation system is engineered for efficient cooling during high-effort pedaling, and the secure fit prevents shifting on rough XC courses.

Weight: 340g,16 Wind Tunnel Vents With Internal Channeling,Roc Loc 5 fit system

Recreational MTB & Bikepacking 90% Fit

For long days on the bike or multi-day bikepacking trips, comfort and reliable protection are key. The Roc Loc 5 system allows for easy on-the-fly adjustments, while the anti-microbial padding and removable pads enhance hygiene and long-wear comfort.

Roc Loc 5 fit system,Coolfit Anti-Microbial Padding,Removable padding

Best for

Best for Trail Riders

With Integrated MIPS technology and the highly adjustable Roc Loc 5 fit system, this helmet provides high-performance impact resistance and a secure, comfortable fit for serious trail riding.

Based on product features

Ideal for Serious Amateur Cyclists

This helmet's In-mold construction and CPSC safety certification offer the peace of mind and high-level impact resistance that serious amateurs require for their active cycling lifestyle.

Based on product features

A Top Choice for Club Racers

Engineered for trail use, it combines an Integrated MIPS system for safety with 16 Wind Tunnel vents for cooling, meeting the demands of competitive racing.

Based on product features

Benefits

FunctionalAchieve a Personalized, Secure Fit

Experience superior comfort and a secure fit on any trail ride. The helmet features the Roc Loc 5 fit system and adjustable straps, allowing for precise, single-handed adjustments to ensure it stays perfectly in place without causing discomfort.

fit_system: Roc Loc 5

adjustable_straps: yes

FunctionalRide with Confidence Thanks to Advanced Protection

Focus on the trail ahead with the assurance of advanced safety technology. This helmet features an integrated MIPS system, designed to provide an additional measure of protection in certain impacts, and is certified to the US CPSC Safety Standard.

mips_technology: Integrated Mips

safety_certifications: US CPSC Safety Standard for Bicycle Helmet for Persons Age 5+

FunctionalKeep Your Helmet Fresh Ride After Ride

Maintain a clean and fresh helmet with ease. The Coolfit Anti-Microbial padding helps to inhibit the growth of odor-causing bacteria, and the padding is also removable for simple washing.

technology_features: MIPS

Coolfit Anti-Microbial Padding

removable_padding: Yes

FunctionalAdapt to Changing Light and Trail Conditions

This helmet is built for the specific demands of trail riding. It includes an adjustable moto-style screw-in visor that can be easily positioned to shield your eyes from sun, rain, or trail debris.

intended_use: Trail

visor_included: Adjustable moto-style screw-in visor

Ideal buyer profiles

The Trail Rider

This rider spends their weekends and free time exploring singletrack and varied off-road terrain. They prioritize safety and comfort for long hours on the bike, tackling everything from technical climbs to fast descents.

The Giro Source Mips helmet is specifically designed for trail use. It features an integrated Mips® safety system for enhanced protection and an In-mold Polycarbonate Shell with EPS liner for robust construction. The Roc Loc® 5 fit system and 16 Wind Tunnel vents ensure a secure, comfortable, and cool fit during demanding rides.

The Safety-Conscious

This individual uses their bike for daily transportation or regular recreational rides on mixed surfaces, including bike paths and light trails. Their primary concern is visibility and proven protection for navigating unpredictable environments.

This helmet meets the US CPSC Safety Standard, providing peace of mind. The integrated Mips® technology offers an additional layer of protection. Comfort is addressed with Coolfit™ antimicrobial padding and an easily adjustable Roc Loc® 5 system, while the moto-style screw-in visor adds practical protection from the elements.

The Rider

This cyclist is focused on optimizing their gear for performance on the trail. They look for equipment that combines advanced safety technology with features that enhance comfort and reduce distractions, allowing them to focus on speed and technique.

With integrated Mips® technology and a Roc Loc® 5 fit system, this helmet provides a secure fit and advanced protection. The 16 vents with internal channeling offer excellent airflow for cooling during intense efforts. Its 340g weight and durable in-mold construction provide a great balance of performance and protection for the dedicated rider.

Competitive features

When evaluating mountain bike helmets, key factors include protection technology, ventilation, and fit systems. The Giro Source Mips Mtb Helmet is a strong contender in the trail riding category, positioned alongside several other capable options. This analysis compares its features against similar helmets to help you make an informed choice for your adventures.

Where it excels

The Giro Source Mips Mtb Helmet features the Roc Loc™ 5 Mips fit system, which integrates the Mips protection system directly with the fit mechanism for a secure and comfortable feel. | It offers deep rear coverage and a moto-style adjustable visor, design elements that are highly valued for trail and all-mountain riding. | With ventilation provided by 16-17 vents and deep internal channeling, this helmet is designed for effective cooling during demanding rides.

Consider alternatives if...

The provided comparison data does not offer specific details on weight, materials, or unique features for the alternative helmets. Therefore, if you are looking for specific advantages in areas like ultra-lightweight construction or different ventilation designs, you may want to explore the specifications of other models individually.

Verdict

The Giro Source Mips Mtb Helmet is a well-rounded and capable choice for trail riders. It combines established safety technology like Mips with practical features such as an adjustable visor, deep coverage, and significant ventilation. While the competitive landscape is tight, the Source Mips stands out with its integrated Roc Loc™ 5 fit system and rugged Hardbody construction, making it a reliable helmet for a wide range of off-road adventures.

Specs comparison

	Giro Source MIPS MTB Helmet	Giro Fixture Mips 2026 Mtb Helmet	Giro Fixture Mips Ii Ua Mtb Helmet	Giro Fixture Mips Ii Xl Mtb Helmet
Ventilation	16 Wind Tunnel Vents With Internal Channeling	-	16 count	16 count
Fit System	Roc Loc 5	Roc Loc Sport	Roc Loc Sport Fit System	Roc Loc Sport Mips Fit System
Technology Features	MIPS, Coolfit Anti-Microbial Padding	-	-	In-Mold Construction, Roc Loc® Sport Fit System, Reflective Details, Universal Fit™ Sizing
Aerodynamics	false	false	false	false
Intended Use	Trail	Trekking, MTB	Trekking, MTB	Trekking, MTB
Weight	340 g	300 g	300g	300g

Specs vs competitors

	Giro Source MIPS MTB Helmet	Mavic Syncro Sl Mips Mtb Helmet	Specialized Ambush Ii Mips Mtb Helmet	Merida Pector Mips Mtb Helmet	Tsg Scope Mips Mtb Helmet
Ventilation	16 Wind Tunnel Vents With Internal Channeling	-	massive ventilation from CFD-designed channels	strategic ventilation	Air Flow Channels
Fit System	Roc Loc 5	LIVEFIT with XRD® breathable memory foam	SBC Integrated Fit system	Boa Adjustment System	Dial Fit System
Technology Features	MIPS, Coolfit Anti-Microbial Padding	37.5	MIPS, 4D brow cooling, Computational Fluid Dynamic design	Mips, Boa Adjustment System	-
Aerodynamics	false	false	true	false	false
Intended Use	Trail	MTB, Cross Country	mountain biking, trail riding	mountain biking	Bike Trail/All-Mountain
Weight	340 g	255 g	360 grams	350 g	400 g