Full-faced helmets provide the ultimate in protection and warmth. In general, these helmets give the ride a comfortable fit and full faced shield protection. Full-faced helmets are ideal for winter riding where keeping warming is vital for a comfortable ride.

Two organizations setting safety standards for motorcycle helmets in the United States, the Federal Government's Department of Transportation (DOT) and the Snell Memorial Foundation.

DOT
DOT sets minimum standards that all helmets sold for motorcycling on public streets must meet. The standard is Federal Motor Vehicle Safety Standard 218 (FMVSS 218) and is known commonly as the DOT helmet standard.

SNELL
The Snell Memorial Foundation is a private not-for-profit organization that sets voluntary standards for motorcycle helmets, bicycle helmets and auto racing helmets, as well as other kinds of protective headgear. Snell standards are the world's toughest.

Size	Chest	Waist	Sleeve
X-SMALL	30-32	24-26	32
SMALL	34-36	28-30	33
MEDIUM	38-40	32-34	34
MEDIUM TALL	42-44	32-34	35 1/2
LARGE	42-44	36-38	35
LARGE TALL	46-48	36-38	36 1/2
X-LARGE	46-48	40-42	36
X-LARGE TALL	46-48	40-42	37 1/2
XX-LARGE	50-52	44-46	37
XX-LARGE TALL	50-52	44-46	38 1/2
XXX-LARGE	50-52	48-50	37 1/2

Regular Sizes: 5'8" to 6'0"
Tall Sizes: 6'0" to 6'4"
* Measurements listed in table are in inches.

Size	Chest	Sleeve
X-SMALL	30-32	32
SMALL	34-36	33
MEDIUM	38-40	34
MEDIUM TALL	42-44	35 1/2
LARGE	42-44	35
LARGE TALL	46-48	36 1/2
X-LARGE	46-48	36
X-LARGE TALL	46-48	37 1/2
XX-LARGE	50-52	37
XX-LARGE TALL	50-52	38 1/2
XXX-LARGE	50-52	37 1/2

* Measurements listed in table are in inches.

Size	Waist	Inseam
X-SMALL	24-26	30
SMALL	28-30	32
MEDIUM	32-34	33 1/2
MEDIUM TALL	32-34	36
LARGE	36-38	33 1/2
LARGE TALL	36-38	36
X-LARGE	40-42	33 1/2
X-LARGE TALL	40-42	36
XX-LARGE	44-46	33 1/2
XX-LARGE TALL	44-46	36
XXX-LARGE	48-50	33 1/2

Regular Sizes: 5'8" to 6'0"
Tall Sizes: 6'0" to 6'4"
* Measurements listed in table are in inches.

Size	Circumference	Helmet Size	Metric Size
X-SMALL	21 1/4	6 3/4	54
SMALL	21 5/8 - 22	6 7/8 - 7	55 - 56
MEDIUM	22 3/8 – 22 3/4	7 1/8 – 7 1/4	57-58
LARGE	23 1/8 – 23 5/8	7 3/8 – 7 1/2	59 - 60
X-LARGE	24 – 24 3/8	7 5/8 – 7 3/4	61 - 62
XX-LARGE	24 3/4 – 25 1/8	7 7/8 - 8	63 - 64
XXX-LARGE	25 - 26	8	65

* Circumference measurements listed are in inches.