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

292 products
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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

$66.00 USD

Dark Purple
XSSMLXLXXLXXXL
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

$66.00 USD

Matte Purple
XSSMLXLXXLXXXL
The TLD 25.2 D4 Poly Helmet MIPS Qualifer in black/yellow features bold angular stripes, the "Troy Lee Designs" logo on the visor, and advanced Mips protection for enhanced safety. The TLD 25.2 D4 POLY HELMET MIPS QUALIFER in black/yellow features angular patterns, red accents, and Troy Lee Designs branding—perfect for mountain biking with advanced Mips protection.
TLD 25.2 D4 POLY HELMET MIPS QUALIFER BLACK / YELLOW

$428.00 USD

Black/Yellow
XS-SM-LXL-XXL
Sold out
The TSG Evolution Helmet in satin black features a hardshell construction, air vents, adjustable chin strap, Tuned Fit System, and a small side logo.
TSG Evolution Helmet / Satin Black

$73.00 USD

Black
XXL
The TSG Nipper Maxi Helmet in Satin Cabernet is a maroon youth helmet featuring lightweight construction, ventilation holes, adjustable fit chin straps, and a small "tsg" logo on the side. The TSG Nipper Maxi Helmet in Satin Cabernet is a matte burgundy youth helmet with ventilation holes, brown adjustable chin straps, and a white "tsg" logo—lightweight and perfect for young skaters seeking comfort and style.
TSG Nipper Maxi Helmet / Satin Cabernet

$84.00 USD

Maroon
XXS-XS
Sold out
The TLD 25.1 D4 Composite Helmet (MIPS) in Stealth Caper is a matte brown full-face helmet with geometric patterns, ventilation openings, and an integrated visor; designed for safety on downhill adventures with MIPS protection. Explore the right fit with our helmet size chart for full-face helmets, detailing head circumference in centimeters. The TLD 25.1 D4 Composite Helmet (MIPS) / Stealth Caper is featured, ranging from XS to 2XL—ideal for those seeking downhill helmets with or without MIPS protection!.
TLD 25.1 D4 Composite Helmet (MIPS) / Stealth Caper

$573.00 USD

Brown
XS-SM-LXL-XXL
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The TLD 25.1 D4 Composite Helmet (MIPS) in Ghostwing White boasts a black and white design with angular patterns and "Troy Lee Designs" on the visor. Ideal for downhill BMX, it offers Mips C2 protection for superior safety without sacrificing style. Troy Lee Designs provides a helmet size chart with head circumferences in cm and sizes for models like the TLD 25.1 D4 Composite Helmet with MIPS, Ghostwing White. It's perfect for downhill BMX riders looking for full face protection or advanced safety features like Mips® C2 technology.
TLD 25.1 D4 Composite Helmet (MIPS) / Ghostwing White

$595.00 USD

White
XS-SM-LXL-XXL
The TLD 25.1 D4 Carbon Helmet (MIPS) / Drip White is a full-face motocross helmet, perfect for downhill BMX adventures. It features a visor, air vents, and a striking red, white, and black design with a bold side logo for enhanced style and performance. The Troy Lee Designs size chart covers head circumferences in cm and inches, with sizes XS to 2XL for models like the TLD 25.1 D4 Carbon MIPS Drip White full-face helmet, offering BMX riders an ideal fit.
TLD 25.1 D4 Carbon Helmet (MIPS) / Drip White

$827.00 USD

White
XS-SM-LXL-XXL
Sold out
A side view of the Bell Sanction 2 Matte Turquoise helmet, featuring angular vents, a visor, and removable cheek pads, ensures excellent airflow. A matte turquoise Bell Sanction 2 off-road motorcycle helmet with a visor and mouth guard, featuring black interior padding and removable cheek pads for added comfort.
Bell Sanction 2 Matte Turquoise

$145.00 USD

Matte Turquiose
XXSXSS
A black and gray Oneal Transition Helmet with an aerodynamic design, featuring rotational impact absorption technology and the brand name "Oneal" visible on the side.
Oneal Transition Helmet

$218.00 USD

Grey/Black
SML
The S-One Helmet Mini Lifer Purple Matte is a purple protective helmet with ventilation holes, chin straps, and the "S1" logo on the side. It features EPS Fusion Foam for enhanced safety, making it a reliable multi-impact helmet. Image displaying the features of the S1 Lifer Helmet, including detailed information about its EPS Fusion Foam, sweat-absorbing liners, sizing guidelines, and a helmet size chart based on head circumference. Additionally, check out the S-One Helmet Mini Lifer Purple Matte for a compact option with the same top-notch protection.
S-One Helmet Mini Lifer Purple Matte

$66.00 USD

Matte Purple
XSSMLXLXXLXXXL
The S-One Helmet Mega Lifer Dark Grey Matte features ventilation holes, adjustable straps, a white S1 logo on the side, and is Australian-certified for high-impact protection. The S-One Helmet Mega Lifer Dark Grey Matte features ventilation holes, a matte finish, and an adjustable chin strap for high-impact protection and comfort.
S-One Helmet Mega Lifer Dark Grey Matte

$73.00 USD

Grey
XSSMLXLXXLXXXL
Six rectangular black Velcro strips, part of the S-One Lifer Velcro Kit installation, are arranged in two rows of three on a white background.
S-One Lifer Velcro Kit

$6.00 USD

Black
One Size
The Bell Sanction 2 DLX MIPS Caiden Black/White is a lightweight helmet with a colorful pattern featuring blue and yellow kites, black and white checkered designs, and the words "SEND MODE" at the bottom. Equipped with MIPS technology, it ensures optimal protection while maintaining style. A Bell Sanction 2 DLX MIPS Caiden Black/White helmet with a black and white checkered pattern and various colorful graphic designs, including crowns, swirls, and lightning bolts. This lightweight helmet incorporates MIPS technology for enhanced protection.
Bell Sanction 2 DLX MIPS Caiden Black/White

$240.00 USD

Black/White
XS-SMLXL
Sold out
A Bell Sanction 2 DLX MIPS Ravine Matte Green/Orange full-face helmet with a green, black, and orange camouflage pattern, featuring a visor and chin guard, also equipped with MIPS technology for added protection. A Bell Sanction 2 DLX MIPS Ravine Matte Green/Orange.
Bell Sanction 2 DLX MIPS Ravine Matte Green/Orange

$218.00 USD

Matte Green/Orange
XS-SMLXL
Sold out
A TLD D4 AS Composite Helmet W/MIPS Ever Tarmac with a red and white design featuring the Mips C2 protection system. A TLD D4 AS Composite Helmet W/MIPS Ever Tarmac with a red and white design and a Mips C2 protection system.
TLD D4 AS Composite Helmet W/MIPS Ever Tarmac

$570.00 USD

Ever Tarmac
XS-SM-LXL-XXL
Two black, curved S-One Lifer Terry Helmet Liners are displayed on a white background, parallel to each other. These washable liners absorb sweat and provide comfort and easy maintenance for your helmet. The S-One Lifer Terry Helmet Liner is a black, washable terry cloth liner for helmets, packed in a clear plastic bag with instructions and warnings on the packaging.
S-One Lifer Terry Helmet Liner

$20.00 USD

Black Terry Cloth
XSSMLXLXXLXXXL
Sold out
Fox Rampage AS Helmet Teal with MIPS impact protection, isolated on a white background.
Fox Rampage AS Helmet Teal

$211.00 USD

Teal
XSSMLXLXXL
Sold out
The S-One Lifer Helmet in Mint Green Matte features ventilation holes, multi-impact protection, and an adjustable black chin strap—delivering certified safety and style for skaters. Diagram illustrating the layers of the S-One Lifer Helmet in Mint Green Matte, its sweat-absorbing liner, and a size chart to guide you in selecting the correct certified skate helmet size with multiple impact protection.
S-One Lifer Helmet / Mint Green Matte

$66.00 USD

Matte Mint
L
Sold out
TLD D3 AS Fiberlite Helmet / Spiderstripe Grey / XL
TLD D3 AS Fiberlite Helmet Spiderstripe Grey / Red

$283.00 USD

Grey/Red
XSSMLXL
New
FUHM005 FUHM005-01-BLK
Fuse Delta Helmet

$110.00 USD

Flat Black
Flat Stealth Grey
Glossy White
Small/Medium 54-58 cmLarge/X Large 58-62 cm
New
FUHM101 FUHM101-01-BLK
Fuse Gamma Helmet

$138.00 USD

Flat Black
Cool Grey
Small/Medium 54-58 cmLarge/X Large-58-62 cm
New
The Protec Fit Bike Co Low Pro Certified Helmet is a black skate helmet featuring a white checker stripe, spade logo, and handwritten-style graphic. It offers high-impact ABS protection, ventilation holes for airflow, and an adjustable chin strap for a customizable fit. The Protec Fit Bike Co Low Pro Certified Helmet features a matte black finish with a distinctive white spade and cross pattern on top, strategically placed ventilation holes, and an adjustable chin strap for comfort. Built with high-impact ABS protection, this helmet offers the slimmest-profile shape for a sleek appearance and customizable fit.
Protec Fit Bike Co Low Pro Certified Helmet

$124.00 USD

Black
XS-SS-ML-XLXL-XXL
S-One Lifer Visor Helmet in matte black features a clear visor, an adjustable black chin strap, three vents for airflow, and a white "S1" logo on the front left. This ASTM certified helmet delivers exceptional protection and style for skateboarders.
S-One Lifer Visor Helmet

$218.00 USD

Matte Black
M

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