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Helmet Size Guides

Bell Custom & Moto 3, 
Davida Jet, & Ninety 2,
Shoei J.O., Ex-Zero & Glamster

Our recommendation:
Davida Jet - VERY snug fit. Always choose at least one size larger that the chart indicates.
Davida Ninety 2 - TRUE to size for 'triangular' head shapes. If you have a pronounced square or round shaped face, then choose one size lager than the chart indicates.

Bell Bullitt
Hedon Epicurist & Hedonist

Please Note:
Hedon Epicurist not available in 2XL

Bell Eliminator & SRT Modular

Davida Speedster V3

Please Note:
Davida Speedster V3 - TRUE to size for 'triangular' head shapes. If you have a pronounced square or round shaped face, then choose one size lager than the chart indicates.

Davida Koura

Hedon Heroine

Caberg

Helmet Accessories Size Guides

Shoei Top Inner Liners

Shoei Cheek Pads

Clothing Size Guides

Mens Merlin Jackets & Shirts

Merlin Trousers & Jeans

Ladies Jackets, Shirts, Trousers & Jeans

Leg length - Regular 31", Short 29"

Footwear Size Guides

Mens Boots & Shoes

Ladies Boots & Shoes

Gloves & Gauntlets Size Guides

Mens and Ladies

ABOUT HALLY STEVENSONS
We like Halley Stevensons because…  They are the World’s leading manufacturers and innovators in waxed cotton and weatherproofed fabrics. All their dyeing and finishing is "under one roof" based at their Baltic Works in Dundee, UK.

While fashions have changed throughout the years, waxed cotton fabric has remained as a practical, durable and stylish solution for many purposes, motorcycling being just one of many. Halley Stevensons supply many of the world’s leading clothing and luggage brands. Their products are exported around the world and are show cased each season at London, Paris, New York, Munich and Milan.

Discover more about WAXED COTTON

ABOUT MARTON MILLS
We like Marton Mills because… They are a traditional family owned weaving mill in the heart of West Yorkshire. Their in house design team delivered a bespoke service to Merlin Bike Gear to enhance and reinforce the high standing of both companies’ products. Consistent quality and exemplary service has led to Marton Mills being the largest supplier of kilt fabrics in the UK.

Discover more about MARTON MILLS

ABOUT D3O
We like D3O because… They are a collective of engineers, chemists, product designers and industry experts who work to find and solve the problems that matter. They are a game changer in the world of protective armour for motorcyclists. D3O^® is the thinnest and most flexible impact protection on the market for urban motorcycle gear and apparel. They make outstanding impact protection products that won’t add bulk to your gear or change the lines of your apparel. Feel comfortable on the bike and at the bar with D3O^®.

D3O armour helps manufacturers achieve CE level?? approval. Among their customers are Merlin Bike Gear, Route One Jeans Rokker Jeans, Hood Jeans, Belstaff and Triumph.

Discover more about D3O

ABOUT DUPONT™ KEVLAR® TWILL
We like Dupont™ Kevlar® because… It’s light in weight, high in performance. Versatile and strong, Kevlar® fibre is more than just a series of threads. DuPont™ Kevlar® fibres are used in a variety of clothing, accessories, and equipment to help make them safer and more durable. With five times the strength of steel based on an equal weight basis, it’s the go-to fibre for protective apparel and accessories.

Kevlar® fibre and filament come in a variety of types, each with its own unique set of properties and performance characteristics for different protection needs. As motorcyclists, we’re glad of it.

Better, safer and stronger with Kevlar®. Want to know why?
Visit DUPONT

ABOUT COVEC
We like Covec® because… A) they’re a British company but also, COVEC® Fabrics are engineered to meet and exceed the needs of the finished product and it’s most rigorous end use, whether in apparel, footwear, backpacks, tents or marine sails. COVEC® Fabrics combine varying reinforcement and outer finish fibre types to deliver unparalleled levels of tear strength, cut resistance, slash resistance and burst resistance depending on the specific end use. Highly desirable for us biker types.

See more about COVEC

ABOUT CORDURA ®
We like CORDURA® because…Field-tested over the last five decades, Cordura® fabric has built its name on durability. Utilised by manufacturers of high-performance gear, as well as a number of the world’s leading militaries, CORDURA^® offers best-in-class performance for today’s top brands, making any product it's stitched into that much tougher and longer-lasting. They know that we know that you never know when your fabric will be tested in the extreme. They use advanced fabric technologies to create performance-driven fabric: ready to handle whatever you're into, and look good too. Cordura® is an advanced fabric, are both strong and versatile. Cordura® is comfortable, fashionable and great for combating the daily grind to surviving some of the world's toughest environments. Cordura® challenges the definition of fabric with advanced solutions that help protect against tears, scuffs, and abrasions.

Stop. Go. Repeat. CORDURA® knows all about making fabric that endures and performs at a high level on and off the motorcycle, come rain or shine. We, in the UK get plenty of one and not enough of the other.

Discover more about CORDURA

ABOUT COTEC
Halley Stevensons have worked with Merlin Bike Gear to advance waxed cotton to modern levels of abrasion resistance required to achieve CE approval. Cotec is unique in bringing this high level of protection, low weight, weather proofing, breathability and comfort without losing the traditional style and lines of a classic waxed cotton motorcycle jacket.

Cotec has a finished weight of 8 ounces compared to traditional wax cotton at 12ounces without any loss of functionality or style. Forma nd function in equal measure.

ABOUT REISSA
We like Reissa because… It’s an advanced material with a breathable and waterproof membrane. The membrane is made of specialized hydrophilic polyurethane which gives higher vapour transmission and waterproofness via a very thin, comfortable and durable material.  Reissa is used in much of the motorcycling world’s leading brand high performance clothing. It’s what makes the waterproof jacket waterproof and the breathable gloves breathable. Sounds great, even fair weather bikers get caught in the rain. Well they do in the UK.

ABOUT HIPORA
We like Hipora® because… HiPora® is a waterproof, wind resistant, breathable film with polyurethane coating. Micro pores are throughout the polyurethane coating, shutting out water ingress, while allowing the moisture from the body to exit. This lightweight material helps keep the motorcycle rider dry, warm and comfortable. Sounds like a longer happier ride doesn’t it? 

ABOUT OUTLAST®
We like Outlast® because… It was originally developed for NASA astronaut’s suits. Brave claim but true.

Outlast® utilizes phase change materials (PCM) that absorb, store and release heat for optimal thermal comfort.  Outlast® technology is comparable to ice in a drink; as it changes from solid to liquid, it absorbs heat and cools the drink, keeping that drink at the desired temperature for longer. Outlast® phase change materials work in the same way, but are microencapsulated to be permanently enclosed and protected in a polymer shell. They call microencapsulated phase change materials Thermocules™.

This encapsulation process makes the Thermocules™ exceptionally durable for motorcycling. The Thermocules™ can be woven into fabrics and fibres to absorb, store and release excess heat.  This gives motorcycle clothing that contains Outlast® technology the ability to regulate the skin’s microclimate continually. As you get hot, the heat is absorbed, and as it cools, that heat is released.

Outlast® technology is not wicking technology, which manages moisture by reacting to your sweat and pulling it away from the skin. Outlast® technology will proactively manage heat while controlling the production of moisture before it begins. That's the Outlast® difference.

Discover more about OUTLAST

ABOUT 3M THINSULATE
We like Thinsulate™ because… 3M™ invented it, in their words, to make living life in every season more enjoyable. Since then, they've chipped away at the boundaries and bulk that prevent pure, unbridled joy of the outdoors. Sound like that’s good for the British motorcyclist.

There’s Thinsulate™ Original which is warm yet lightweight, powerful yet thin. It helps trap body heat, while allowing moisture to escape. There’s also Thinsulate ™ Water Resistant which opens up a whole new world of warmth and comfort.  Made with hydrophobic fibres for advanced water resistance, it will help keep bikers warm, comfortable and dry without unnecessary weight.

Discover more about THINSULATE by 3M

ABOUT PRIMALOFT
We like Primaloft® because… Primaloft® uses unique fibres and technologies to create high-performance synthetic insulation that is light-weight, effective, water-resistant, and durable. It is made to insulate effectively without awkward bulk and its quick-drying hydrophobic fibres work even when wet.

Discover more about PRIMALOFT

ABOUT COOLMAX
We like Coolmax® because… It’s really clever stuff. Fabric made with COOLMAX® AIR technology uses yarns with propeller-shaped cross-sections to deliver the combined performance of superior moisture management, breathability, and quick dry time. It provides comfort to help bikers optimise performance.

The summer will come again, the sun will be beating down and us bikers will be wearing a helmet, armoured jacket, jeans and boots, oh, and a smile. All but the latter will make us as hot as a rocket’s rear end. That’s where Coolmax® makes a difference. With excellent moisture management it wicks away sweat, lets cool air in and it’s easy to wash too.

Discover more about COOLMAX

ABOUT CE LEVELS

A precis from the .GOV website… The letters ‘CE’ appear on many products that are traded in the European Economic Area (EEA). “CE” is the abbreviation of the French phrase “Conformité Européene” which literally means “European Conformity”.

It shows that the manufacturer has checked that these products meet EU safety, health or environmental requirements. By placing the CE marking on a product a manufacturer is declaring conformity with all of the legal requirements to achieve CE marking. The manufacturer is thus ensuring validity for that product to be sold throughout the EEA.

CE marking does not mean that a product was made in the EEA, but states that the product is assessed before being placed on the market. It means the product satisfies the legislative requirements to be sold there. It means that the manufacturer has checked that the product complies with all relevant essential requirements, for example health and safety requirements.

If you ride a motorcycle in Europe, you must wear protective motorcycle apparel and a motorcycle helmet that has CE approval.

CE Tested: - Implies that the manufacturer tested the whole or just a piece of a garment within their own facility that might meet certain standards. However, the garment is not necessarily tested in a certified testing facility.

CE Certified: - States that samples of the garment or parts of the sample garment (e.g. just the armour) were tested in certified testing facilities.

CE Approved: -This means several parts of a garment were tested in certified facilities and are accredited to meet or surpass the required standards.

Discover more at… https://www.gov.uk/guidance/ce-marking#overview

Regarding motorcycle helmets, ECE 22.05 is the marking you’re look for and clothing should have CE level 1 or CE level 2.

ABOUT SHARP TESTING

SHARP, the Safety Helmet Assessment and Rating Programme. SHARP provides advice on how to select a helmet that fits correctly and is comfortable. They also provide information about the relative safety of helmets to help motorcyclists to make an informed choice. There are 475 helmet test on the SHARP website.

Motorcyclists represent one of the most vulnerable road user groups. Typically in the UK motorcyclists represent 1% of traffic but 19% of the casualties. Significantly, around 80% of all motorcyclist fatalities and 70% of those with serious injuries, sustain head injuries. Research also shows that, statistically, head impacts are distributed uniformly around the circumference of the helmet.

Research has also highlighted that helmet detachment can occur during the accident sequence with reports indicating a frequency varying from 10% to 14% of casualties. Separately, there was concern that there may be poor knowledge concerning the best practice when choosing a properly fitting helmet.

Worth getting it right then. Check the results at

Discover more at… https://sharp.dft.gov.uk/

ABOUT DOT

The United States of America “Department of Transportation” issues safety standards on a wide variety of products including motorcycle helmets. The abbreviation DOT and supporting information will appear on a sticker on any motorcycle helmet that meets standard FMVSS 218, the Federal Motor Vehicle Safety Standard #218, Motorcycle Helmets, and it is applicable to helmets sold in the U.S. for on-road use.

FMVSS 218 sets standards in three areas of helmet performance: impact attenuation, basically energy absorption; penetration resistance; and finally the retention system effectiveness. The standard also requires peripheral vision to be not less than 105° from the helmet midline.  Projections from the surface of the helmet (snaps, rivets, etc.) may not exceed 5 mm.

The impact test measures acceleration of a headform inside the helmet when it is dropped from a fixed height onto a spherical and flat surfaced anvil. The standard allows a peak acceleration energy of 400 G (G being “gravity constant” or an acceleration value of ft. per second x seconds).

The penetration test involves dropping a piercing test striker onto the helmet from a fixed height. The striker must not penetrate deep enough to contact the headform.

The retention system test involves placing the helmet’s retention straps under load in tension.  For this test the load is progressive; first a load of 22.7 kg (49.9 lb.) is applied for 30 seconds, then it is increased to 136 kg (299.2 lb.) for 120 seconds, with measurement of the stretch or displacement of a fixed point on the retention strap from the apex of the helmet.

The authentic DOT label is displayed on the back of compliant motorcycle helmets must now include, in this order: -

The manufacturer’s name

Model number or name

“DOT” below the manufacturer’s name

“FMVSS 218” centred below DOT

“Certified” below FMVSS 218

DOT certification does not necessarily mean that the helmet complies with ECE standards and vice versa. We recommend ensuring your insurance policy covers you by having ECE approval on your motorcycle helmet too.

Find out more at: https://www.federalregister.gov/documents/2015/05/21/2015-11756/federal-motor-vehicle-safety-standards-motorcycle-helmets