Helmet Size Guides

Getting the right sized helmet is crucial!

Don't gamble with your safety.

Measure around your head

If you haven't got a flexible measuring tape use a piece of string or shoelace! You want to make sure this measurement is as accurate as possible.

100% Status

Adult Size: Inches, Centimeters
XS: 20 7/8 – 21 1/4in, 53 – 54cm
SM: 21 5/8 – 22in, 55 – 56cm
MD: 22 1/2 – 22 7/8in, 57 – 58cm
LG: 23 1/4 – 23 5/8in, 59 – 60cm
XL: 24 – 24 3/8in, 61 – 62cm
XXL: 24 3/4 – 25 1/4in, 63 – 64cm


Youth Size: Inches, Centimeters
SM: 18 1/2 – 18 7/8in, 47 – 48cm
MD: 19 1/4 – 19 5/8in, 49 – 50cm
LG: 20 1/8 – 20 1/2in, 51 – 52cm

Bell Sanction

SIZE: CM, IN
XS: 48-51cm, 18 7/8" – 20 1/8"
S: 52-54cm, 20 1/2" – 21 1/4"
M: 55-57cm, 21 5/8" – 22 1/2"
L: 58-60cm, 23 1/4" – 24 5/8"

Bell Sanction V2

SIZE: CM, IN
XXS: 48-51cm, 19" – 20 1/8"
XS/S: 51-55cm, 20 1/8" – 21 5/8"
M: 55-57cm, 21 5/8" – 22 1/2"
L: 57-59cm, 22 1/2" – 23 1/4"
XL: 59-61cm, 23 1/4" – 24"

Kenny Downhill

XXS: 51-52cm

XS: 53-54cm

S: 55-56cm

M: 57-58cm

L: 59-60cm

XL: 61-62cm

XXL: 63-64cm

TLD

Troy Lee Designs

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Fox Rampage Youth Helmet / Dark Indigo / Youth S Fox Rampage Youth Helmet / Black/Black / Youth S
brand undefined Fox Rampage Youth Helmet
From

$139.99 AUD

$249.99 AUD
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Protec Classic Certified Helmet Matte Black / XL
Protec Classic Certified Helmet Matte Black
From

$89.99 AUD
A black multi-impact helmet with a speckled design, featuring the "S1" logo on the front left side and an adjustable chin strap with a red clip. This S-One Helmet Mini Lifer Black Gloss Glitter is constructed with EPS Fusion Foam for superior protection. A black S-One Helmet Mini Lifer Black Gloss Glitter with a glittery finish, visor holes, and an adjustable black strap. The multi-impact helmet features EPS Fusion Foam and white "S1" branding on the side and on the strap.
S-One Helmet Mini Lifer Black Gloss Glitter
From

$109.99 AUD
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Protec Classic Certified Helmet Matte Olive / XL
Protec Classic Certified Helmet Matte Olive
From

$89.99 AUD
A black S-One Helmet Mega Lifer Black Matte with ventilation holes, adjustable straps, and a white "S1" logo on the front left side. This high-impact helmet also includes free sizing kits for the perfect fit. A **S-One Helmet Mega Lifer Black Matte** branded skate helmet features multiple ventilation holes, an adjustable chin strap, and high-impact protection.
S-One Helmet Mega Lifer Black Matte
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$99.99 AUD
S-One Lifer Helmet / Dark Matte Green / XL An informative diagram displaying the inside structure of an S-One Lifer Helmet / Dark Matte Green with EPS Fusion Foam and a sizing chart for different head circumferences.
S-One Lifer Helmet / Dark Matte Green
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$89.99 AUD
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The Bell Sanction 2 DLX MIPS Matte Black is a black bicycle helmet with a matte finish, MIPS technology for safety, and two rectangular vents on top. A size chart for the Bell Sanction 2 DLX MIPS Matte Black helmet displays XS/S, M, L, and XL sizes with measurements in centimeters, inches, and hat sizes—ideal for BMX racing helmet fitting.
Bell Sanction 2 DLX MIPS Matte Black
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$279.99 AUD
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The TLD 22S D3 AS Fiberlite Helmet Mono Black, a lightweight composite design, is shown on a white background. TLD 22S D3 AS Fiberlite Helmet / Mono Black / XS
TLD 22S D3 AS Fiberlite Helmet Mono Black

$282.99 AUD

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$519.99 AUD
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S-One Lifer Helmet / Boyd Hilder Black/Grey Fade / XXL A diagram of S-One Lifer Helmet / Boyd Hilder Black/Grey Fade showing the protective foam, sizing liners, and a guide on picking the correct helmet size based on head circumference in inches and centimeters. The diagram also highlights that it's a multiple impact helmet and includes information about available sizing kits.
S-One Lifer Helmet / Boyd Hilder Black/Grey Fade
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$124.99 AUD
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Protec Certified Full Cut Helmet / Matte White / XL The Protec Fullcut Certified Helmet, available in matte white, boasts multiple certifications and features ventilation holes along with an adjustable chin strap for a secure fit.
Protec Fullcut Certifed Helmet
From

$129.99 AUD
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Bell Sanction Matte Red/Black Presences Helmet / Matte Red/Black / M
brand undefined Bell Sanction Matte Red/Black Presence Helmet
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$169.99 AUD
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A Goodstock Certified Helmet / Matte Black, featuring ventilation holes and an adjustable chin strap, is shown against a white background. Designed for high and low impact protection, it also incorporates CoolMax liner tech for added comfort. A Goodstock Certified Helmet / Matte Black, viewed from the top, showcases a sleek black design with multiple ventilation holes and integrated CoolMax liner tech for high and low impact protection.
Goodstock Certified Helmet / Matte Black
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$89.99 AUD
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The S-One Helmet Lifer Black Gloss Glitter features ventilation holes and adjustable straps, offering top-notch protection as a multi-impact helmet. A S-One Helmet Lifer Black Gloss Glitter with a chin strap, the logo "S1" on the side, and Australian-certified helmet standards, comes with free sizing kits.
S-One Helmet Lifer Black Gloss Glitter
From

$109.99 AUD
The TSG Evolution Helmet in Satin Black features hardshell construction, ventilation holes, an adjustable chin strap, Tuned Fit System, and side logo. The TSG Evolution Helmet in satin black features a hardshell design for biking or skating, high-impact protection, multiple air vents, and an adjustable chin strap, shown in side profile.
TSG Evolution Helmet / Satin Black
From

$99.99 AUD
The TSG Evolution Helmet in Special Clear White features red adjustable straps, a black buckle, a small front-left logo, and enhanced protection with the Tuned Fit System. The TSG Evolution Helmet / Special Clear White is a white hardshell helmet with red adjustable chin straps and black buckle, displayed in side profile on a plain white background.
TSG Evolution Helmet / Special Clear White
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$129.99 AUD
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The Bell Sanction 2 Matte Cement is an entry-level, matte beige full-face helmet with visor and vents, ideal for BMX or motocross riders. Shown on a white background. The Bell Sanction 2 Matte Cement helmet, shown in side profile, features a black visor and multiple air vents—an ideal entry-level choice for motocross or BMX riders seeking style and protection.
Bell Sanction 2 Matte Cement
From

$199.99 AUD
The S-One Helmet Lifer in Black Matte with Orange Straps showcases vibrant orange straps and ventilation holes on top, designed with Multiple Impact Protection using EPS Fusion Foam for enhanced safety. The S-One Helmet Lifer in Black Matte with Orange Straps is a stylish helmet that features multiple ventilation holes, an orange logo on the side, and offers enhanced safety with its EPS Fusion Foam, providing multiple impact protection for your ride.
S-One Helmet Lifer / Black Matte/Orange Straps
From

$89.99 AUD
A pink and purple gradient S-One Helmet Lifer Cotton Candy with a white "S1" logo, featuring air vents and an adjustable black chin strap. This multi-impact helmet combines style and safety for any skateboarding adventure. A detailed infographic on the S-One Helmet Lifer Cotton Candy, outlining its EPS Fusion Foam and sizing options. It includes helmet size measurements, sweat-absorbing liner features, and standards certifications for this high-impact helmet.
S-One Helmet Lifer Cotton Candy
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$109.99 AUD
A certified S-One Lifer Helmet / Light Grey with the word s1 on it, providing head protection. An infographic detailing features of the S-One Lifer Helmet / Light Grey, including foam protection, sweat-absorbing liner, multiple impact protection, helmet sizing chart, and instructions for measuring head size to pick the correct helmet size. Free sizing kits are also available for a perfect fit.
S-One Lifer Helmet / Light Grey
From

$89.99 AUD
The S-One Helmet Lifer Lagoon Gloss features ventilation holes, black adjustable straps, and an "S1" logo on the side. This high-impact, Australian-certified helmet delivers reliable protection for skating enthusiasts. The S-One Helmet Lifer Lagoon Gloss features a teal finish, black adjustable straps, and air vents. This high-impact, Australian-certified helmet combines stylish front-facing design with reliable protection.
S-One Helmet Lifer Lagoon Gloss
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$89.99 AUD
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A Bell Sanction (1) Visor Bolts set with two bolts, two washers, and a three-pronged piece displayed on a white background.
brand undefined Bell Sanction (1) Visor Bolts
From

$14.99 AUD
The S-One Helmet Lifer Purple Gloss Glitter is a purple, glitter-covered high-impact helmet with ventilation holes and an adjustable chin strap. A sizing chart for the Australian-certified S-One Helmet Lifer Purple Gloss Glitter includes measurement instructions, liner sizes (Small to Mega), and an illustration showing where to measure head circumference. The helmet's interior features are also detailed. Free sizing kits are available to ensure a perfect fit.
S-One Helmet Lifer Purple Gloss Glitter
From

$109.99 AUD
A S-One Helmet Lifer Black Camo for skateboarding protection on a white background. A close up of an S-One Helmet Lifer Black Camo labeled for skateboarding.
S-One Helmet Lifer Black Camo
From

$99.99 AUD
A white S-One Mini Lifer Helmet with the word sz on it, offering certified high impact protection. Chart detailing the S1 Lifer Helmet sizes, including an internal view of the helmet and sizing instructions. Features EPS Fusion Foam, sweat-absorbing liner, and various certification standards. Also available: S-One Mini Lifer Helmet / Gloss White with Certified Multiple Impact Protection for smaller heads.
S-One Mini Lifer Helmet / Gloss White
From

$89.99 AUD