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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A S-One Helmet Mini Lifer Silver Gloss Glitter with a black interior padding, featuring the logo "S1". It incorporates EPS Fusion Foam for multi-impact protection, multiple ventilation holes, and an adjustable chin strap with a red buckle. The S-One Helmet Mini Lifer Silver Gloss Glitter, featuring ventilation holes and a black adjustable strap with red clasps, is designed for head protection and boasts EPS Fusion Foam for enhanced safety.
S-One Helmet Mini Lifer Silver Gloss Glitter

$109.99 AUD

 From

$119.99 AUD
The S-One Helmet Retro Lifer Cyan Matte is a blue safety helmet with a black interior, multiple ventilation holes, and a chin strap, featuring "S1" branding on the side. This high-impact helmet ensures ultimate protection while maintaining style. A blue S-One Helmet Retro Lifer Cyan Matte with ventilation holes, black trim, and a chin strap. This multi-impact helmet is designed for both safety and style.
S-One Helmet Retro Lifer Cyan Matte
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$139.99 AUD
A glittery gray skateboard helmet with air vents, black adjustable chin straps, and an "S1" logo on the side, the S-One Helmet Lifer Silver Glitter offers top-notch protection. A S-One Helmet Lifer Silver Glitter with black straps and multiple ventilation holes, this Australian-certified helmet ensures both safety and style.
S-One Helmet Lifer Silver Glitter
From

$139.99 AUD
A blue TLD D4 AS Polyacrylite Helmet W/MIPS Shadow Blue with a white Troy Lee Designs logo on it. The TLD D4 AS Polyacrylite Helmet W/MIPS Shadow Blue is shown on a white background, emphasizing its safety features.
TLD D4 AS Polyacrylite Helmet W/MIPS Shadow Blue
From

$584.99 AUD
S-One Mini Lifer Helmet / Matte Bright Green / XXL Our helmet sizing guide showcases size charts for selecting S1 Lifer helmets, including the S-One Mini Lifer Helmet / Matte Bright Green, based on head circumference in inches and centimeters. It also features information on EPS Fusion Foam and sweat-absorbing liners for optimal comfort and protection.
S-One Mini Lifer Helmet / Matte Bright Green
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$99.99 AUD
S-One Lifer Helmet Star Liner / 2mm Deep
S-One Lifer Helmet Star Liner
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$7.99 AUD
S-One Lifer Helmet / Matte Maroon / XL Diagram showing the features of an S-One Lifer Helmet / Matte Maroon, including EPS Fusion Foam, sweat-absorbing sizing liners, and a size guide. The S-One Lifer Helmet / Matte Maroon is multi-impact certified and meets CPSC, ASTM, and EN 1078 standards for impact protection.
S-One Lifer Helmet / Matte Maroon
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$109.99 AUD
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Protec Old School Certified Helmet / Gloss White / XXXS
Protec Old School Certified Helmet -/Gloss White

$99.99 AUD

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$119.99 AUD
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Protec Classic Certified Helmet / Matte Bright Red / XXS
Protec Classic Certified Helmet - Matte Bright Red
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$89.99 AUD
The S-One Helmet Lifer in Tree Green Matte features ventilation holes, black adjustable straps, and a white "S1" logo on the left side for multiple impact protection. The S-One Helmet Lifer in Tree Green Matte features ventilation holes, black adjustable straps, side "S1" logo, and is designed for multiple impact protection.
S-One Helmet Lifer / Tree Green Matte
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$109.99 AUD
Save $60.00
The TLD 25.2 D4 Carbon Helmet MIPS Lowrider Blue features striking geometric graphics, “Troy Lee Designs” branding on the visor and side, and advanced Mips protection—ideal for mountain biking. The TLD 25.2 D4 Carbon Helmet MIPS Lowrider Blue features bold geometric patterns, Troy Lee Designs branding, and advanced Mips protection—ideal for motocross or mountain biking adventures.
TLD 25.2 D4 CARBON HELMET MIPS LOWRIDER BLUE

$1,099.99 AUD

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$1,159.99 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
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$99.99 AUD
The TSG Dawn Flex Full Cut Helmet in white features black interior padding, a red adjustable chin strap, ventilation slots, soft-fit comfort for a secure feel, ear protection, and the TSG logo on the front. TSG Dawn Flex Full Cut Helmet in white, featuring ventilation holes and a red adjustable chin strap for soft-fit comfort, displayed in side profile against a plain background.
TSG Dawn Flex Full Cut Helmet / White
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$129.99 AUD
The TSG Prevention Helmet Satin Black features a visor, advanced ventilation system with side vents, and an adjustable chin strap, shown against a white background. The TSG Prevention Helmet Satin Black features a matte finish, visor, angular vents, side cutout, adjustable chin strap, “Technical Safety Gear” text on the side, and a ventilation system ideal for BMX riders.
TSG Prevention Helmet Satin Black
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$249.99 AUD
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The Bell Sanction 2 DLX MIPS Fast House Matte Black is a lightweight full-face motocross helmet with a visor, featuring MIPS technology for enhanced safety. The Bell Sanction 2 DLX MIPS Fast House provides a sleek black full-face helmet for BMX racing, complete with MIPS technology, a tinted visor, and multiple ventilation openings.
Bell Sanction 2 DLX MIPS Fast House Matte Black
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$279.99 AUD
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The TLD 25.1 D4 Carbon Helmet (MIPS) in Torched Black/Purple features a vibrant flame design on a sleek carbon fiber base with a prominent visor and aerodynamic shape for enhanced protection. Explore the TLD 25.1 D4 Carbon Helmet (MIPS) in Torched Black/Purple with a size chart for various models, including Full Face Helmets, tailored to head measurements. Find your perfect fit for Downhill BMX adventures.
TLD 25.1 D4 Carbon Helmet (MIPS) / Torched Black/Purple
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$1,139.99 AUD
Bright pink S-One Helmet Mini Lifer Hot Pink Gloss with multiple ventilation holes and an adjustable black strap. The helmet features the "S1" logo on the front and EPS Fusion Foam for added protection. The S-One Helmet Mini Lifer Hot Pink Gloss is a bright pink helmet with black vent holes and an adjustable black chin strap. It features the logo "S1" on the side and incorporates EPS Fusion Foam for superior protection.
S-One Helmet Mini Lifer Hot Pink Gloss
From

$99.99 AUD
The S-One Helmet Retro Lifer White Gloss/Black Checkers features a black and white checkered stripe down the middle and the number "51" on the side. This high-impact helmet includes interior padding and a black chin strap for added comfort and safety. A white S-One Helmet Retro Lifer White Gloss/Black Checkers with the black "S1" logo, multiple ventilation holes, and an adjustable black chin strap. This Australian-certified helmet offers superior protection as a high-impact multi-impact helmet.
S-One Helmet Retro Lifer White Gloss/Black Checkers
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$184.99 AUD
Save $0.27
A strip of black circular Velcro dots on a white adhesive backing, perfect for your S-One Lifer (12 Pack) Velcro Kit Round Dots or to replace old Velcro on your S1 Lifer helmet. The inside of a bicycle helmet displaying texture, ventilation holes, label 'FRONT', size 'L', and safety certification stickers, equipped with a handy S-One Lifer (12 Pack) Velcro Kit Round Dots for easy adjustments.
S-One Lifer (12 Pack) Velcro Kit Round Dots

$6.99 AUD

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$7.26 AUD
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A Bell Full-10 SPHR MIPS Matte Black full-face motorcycle helmet with a visor and checkered pattern design, featuring advanced helmet safety technology. A Bell Full-10 SPHR MIPS Matte Black, full-face motocross helmet with a visor and ventilation openings, featuring a sleek design with subtle pattern detailing and advanced helmet safety technology.
brand undefined Bell Full-10 SPHR MIPS Matte Black
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$1,094.99 AUD
The S-One Helmet Lifer Green Camo provides head protection against multiple impacts. A S-One Helmet Lifer Green Camo on a white background.
S-One Helmet Lifer Green Camo
From

$129.99 AUD
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TLD D3 AS Fiberlite Helmet / Spiderstripe Black / XXL
TLD D3 AS Fiberlite Helmet / Spiderstripe Black

$389.99 AUD

 From

$519.95 AUD
The S-One Helmet Retro Lifer / Black on Black Leopard Hosoi features a matte black finish with a subtle leopard print, ventilation holes, padded interior, chin strap, multi-impact protection, and a white "S1" logo on the side.
S-One Helmet Retro Lifer / Black on Black Leopard Hosoi
From

$139.99 AUD
The S-One Helmet Lifer Blood Red Matte features ventilation holes, an adjustable black chin strap, and the "S1" logo. This Australian-certified helmet provides reliable high-impact protection for skateboarders. The S-One Helmet Lifer Blood Red Matte features ventilation holes, black adjustable straps, and the "S1" logo. Australian-certified, it combines style and high-impact protection—ideal for every skateboarder.
S-One Helmet Lifer Blood Red Matte
From

$109.99 AUD