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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The S-One Lifer Helmet in Navy Matte features ventilation holes, certified impact protection, an "S1" logo on the side, and adjustable black chin straps—perfect for action sports. The S-One Lifer Helmet in Navy Matte is a certified skate helmet featuring a secure chin strap and "S1" logo, delivering top-tier head protection.
S-One Lifer Helmet / Navy Matte
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$99.99 AUD
The S-One Lifer Helmet / Leopard features a bold leopard print, black straps, multiple vent holes, and multi-impact protection—making it a stylish and safe choice for skating. S-One Lifer Helmet / Leopard sizing guide highlights skateboard helmet features, multiple impact protection, liner options, and a size chart with head circumference measurements in inches and centimeters.
S-One Lifer Helmet / Leopard
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$109.99 AUD
The S-One Lifer Helmet / Jelly Beans features a multicolored jelly bean pattern, black foam interior, and adjustable chin strap, offering multiple impact protection for action sports. The S-One Lifer Helmet / Jelly Beans is a certified skateboard helmet with a vibrant jelly bean pattern, black adjustable straps, multi-impact protection, and the S1 logo on the side and strap.
S-One Lifer Helmet / Jelly Beans
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$119.99 AUD
The S-One Lifer Helmet in Bright Green Matte has black straps, a chin buckle, ventilation holes, and a stylized "S1" logo. This certified skate helmet provides reliable multi-impact protection for safety. The S-One Lifer Helmet in Bright Green Matte is a certified skate helmet featuring black adjustable straps and ventilation holes, shown from a side angle for superior head protection.
S-One Lifer Helmet / Bright Green Matte
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$99.99 AUD
The S-One Lifer Helmet in Kaleidoscope Matte features a multi-colored geometric design, black adjustable straps, two front ventilation holes, and certified multi-impact protection. The S-One Lifer Helmet / Kaleidoscope Matte features a multicolored geometric design, black straps, two front vents, and provides multiple impact protection.
S-One Lifer Helmet / Kaleidoscope Matte
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$109.99 AUD
The S-One Lifer Helmet in White Glitter features black padding, ventilation holes, an adjustable chin strap, and a side "S1" logo. Designed for action sports, it offers multi-impact protection for superior safety. A S-One Lifer Helmet in White Glitter, shown from the side against a white background, features black straps and buckle and offers multiple impact protection.
S-One Lifer Helmet / White Glitter
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$119.99 AUD
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The S-One Lifer Helmet in Black Matte with Red Straps is a certified skate helmet featuring ventilation holes and an "S1" logo on the side for multiple impact protection. The S-One Lifer Helmet in Black Matte features red straps and logo, providing certified multi-impact skate safety.
S-One Lifer Helmet / Black Matte/Red Straps
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$99.99 AUD
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The S-One Lifer Helmet in black matte with grey straps features ventilation holes, an adjustable chin strap, a certified skate helmet design, and side "S1" logo for multiple impact protection. The S-One Lifer Helmet in Black Matte with grey straps features ventilation holes, an adjustable chin strap, the S1 logo on the side, and is certified for multiple impact protection for enhanced safety.
S-One Lifer Helmet / Black Matte/Grey Straps
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$99.99 AUD
The S-One Lifer Helmet in Black White Glitter/Bomba Hache features ventilation holes, an adjustable chin strap, and certified multi-impact protection for skating. The S-One Lifer Helmet in Black White Glitter/Bomba Hache offers ventilation holes, multi-impact protection, and an adjustable chin strap.
S-One Lifer Helmet / Black White Glitter/Bomba Hache
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$119.99 AUD
The S-One Lifer Helmet in Matte/Pink Checkers features a pink checkered stripe, pink "S1" logo, pink straps, vents, adjustable buckle, and certified multi-impact protection for safety and style. Sizing chart and fitting guide for the S-One Lifer Helmet Matte/Pink Checkers, a certified skate helmet with top impact protection—includes cross-section, liner features, and size selection by head circumference.
S-One Lifer Helmet / Matte/Pink Checkers
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$109.99 AUD
The S-One Lifer Helmet Purple Matte features ventilation holes, black adjustable straps, and a white S1 logo, providing multi-impact protection for action sports enthusiasts. Diagram explaining S-One Lifer Helmet Purple Matte features, such as multi-impact protection, a sweat-absorbing liner, and a sizing chart to help you choose the right helmet size based on your head circumference.
S-One Lifer Helmet Purple Matte
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$109.99 AUD
The S-One Helmet Mega Lifer Purple Matte is an Australian-certified helmet with a matte purple finish, ventilation holes, adjustable chin strap, side "S1" logo, and designed for high-impact protection. The S-One Helmet Mega Lifer Purple Matte features black padding, ventilation holes, an adjustable chin strap, a white "S1" logo, and is Australian-certified for high-impact protection.
S-One Helmet Mega Lifer Purple Matte
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$109.99 AUD
The S-One Helmet Lifer Kelly Green features ventilation holes, black straps, and an “S1” logo. This high-impact helmet is Australian-certified, providing stylish superior protection. The S-One Helmet Lifer Kelly Green is an Australian-certified, high-impact helmet with a green shell, two front vents, black chin straps, and an "S1" logo on the left side.
S-One Helmet Lifer Kelly Green
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$109.99 AUD
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The TLD 25.2 D4 POLY HELMET MIPS QUALIFER BLUE/WHITE is a full-face mountain bike helmet with a visor, blue/white/red geometric design, "Troy Lee Designs" branding, and advanced Mips protection for enhanced safety. The TLD 25.2 D4 Poly Helmet MIPS Qualifer Blue / White is a full-face motocross helmet with a blue and white geometric design, Mips protection, extended visor, and prominent ventilation openings.
TLD 25.2 D4 POLY HELMET MIPS QUALIFER BLUE / WHITE
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$589.99 AUD
The TSG Evolution Helmet in Satin Lime Green features hardshell construction, ventilation holes, black adjustable straps, and a white side logo. The TSG Evolution Helmet in Satin Lime Green features ventilation slots, high-impact protection, and an adjustable black chin strap, shown from the side.
TSG Evolution Helmet / Satin Lime Green
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$99.99 AUD
The TSG Evolution Helmet in Satin Oxblood is a slim hardshell helmet with ventilation holes, black adjustable chin strap, foam padding, high-impact protection, and a Tuned Fit System for secure comfort. The TSG Evolution Helmet in Satin Oxblood is a slim, matte red skate-style hardshell with ventilation holes, black padding, and an adjustable black chin strap. It offers high-impact protection and is displayed against a white background.
TSG Evolution Helmet / Satin Oxblood
From

$99.99 AUD
The TSG Nipper Maxi Helmet in satin green features blue adjustable straps and a black buckle. This lightweight youth helmet ensures safety and comfort for active kids. Shown on a white background. The TSG Nipper Maxi Helmet in satin green for youth features blue adjustable straps, multiple ventilation holes, and a lightweight design, displayed against a white background.
TSG Nipper Maxi Helmet / Satin Green
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$114.99 AUD
The TSG Nipper Maxi Helmet / Satin White features in-mold construction, a protective white shell, black adjustable straps, and side vents—ideal for sports or outdoor activities. The TSG Nipper Maxi Helmet in Satin White features ventilation holes, adjustable straps, and a secure buckle for a snug fit. Shown in side profile on a plain background, it's lightweight and ideal for everyday protection.
TSG Nipper Maxi Helmet / Satin White
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$114.99 AUD
The TSG Nipper Maxi Helmet / Fly Like A Bird features black straps, ventilation holes, abstract black and white side graphics, durable In-Mold Construction, and a Tuned Fit System for secure comfort. The TSG Nipper Maxi Helmet / Fly Like A Bird is a lightweight youth helmet in blue, featuring black and white bird and zigzag graphics, plus an adjustable black chin strap for comfort.
TSG Nipper Maxi Helmet / Fly Like A Bird
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$124.99 AUD
The TLD D4 Polyacrylite Helmet (MIPS) / Shadow Timber is a tan and black full-face motocross helmet with a visor, designed for off-road use. It boasts a durable Polyacrylite shell, vibrant side graphics, and Mips brain protection for superior safety. The Troy Lee Designs helmet size chart provides detailed head circumference guidance in centimeters for full-face models like A1, A2, Stage, SE4, SE5. Models such as the TLD D4 Polyacrylite Helmet (MIPS) / Shadow Timber feature advanced Mips technology and durable polyacrylite shells.
TLD D4 Polyacrylite Helmet (MIPS) / Shadow Timber
From

$589.99 AUD
The TLD D4 Polyacrylite Helmet (MIPS) in Fifty-50 White/Red features a full-face design with the "Troy Lee Designs" logo and geometric patterns, crafted for motocross and BMX, and includes Mips® C2 technology for improved safety. The TLD D4 Polyacrylite Helmet (MIPS) / Fifty-50 White/Red size chart lists head circumference in inches and centimeters for models XS to 2XL, suitable for downhill BMX riders, and includes the advanced Mips® C2 protection system.
TLD D4 Polyacrylite Helmet (MIPS) / Fifty-50 White/Red
From

$589.99 AUD
The TLD D4 Polyacrylite Helmet (MIPS) in Fifty-50 Navy/Glo Yellow offers MIPS protection with a geometric pattern and Troy Lee Designs branding on the visor and side for maximum safety. Explore the TLD D4 Polyacrylite helmet size chart for a precise fit for various head sizes, including full-face models with MIPS protection. Perfect for biking or BMX, find your ideal size with the Fifty-50 Navy/Glo Yellow design.
TLD D4 Polyacrylite Helmet (MIPS) / Fifty-50 Navy/Glo Yellow
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$589.99 AUD
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The TLD D4 Polyacrylite Helmet (MIPS) in Linear Blue features a visor, superior ventilation, angular design, and bold graphics. Enhanced with Mips® C2 brain protection, it offers top-tier safety and style on the track. Explore our helmet size chart with head circumference details for models such as the TLD D4 Polyacrylite Helmet (MIPS) / Linear Blue. Sizes from XS to XXL are available in different colors, featuring Mips® C2 brain protection for your peace of mind.
TLD D4 Polyacrylite Helmet (MIPS) / Linear Blue
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$589.99 AUD
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The TLD D4 Polyacrylite Helmet (MIPS) in Linear Black boasts a striking black and purple design with red and white accents, made from a durable polyacrylite shell. It features Troy Lee Designs branding and includes MIPS brain protection for enhanced safety. The TLD D4 Polyacrylite Helmet (MIPS) size chart offers a detailed, color-coded guide for head circumferences and sizes, including the Linear Black model featuring Mips Brain Protection for full face coverage.
TLD D4 Polyacrylite Helmet (MIPS) / Linear Black
From

$589.99 AUD