2. Gear
  3. Street
  4. Helmets
  5. Adult

WARNING: California’s Proposition 65

Icon Threshold Nocturnal 2 Modular Adult Street Helmets
$450.00
Icon Threshold Nocturnal 2 Modular Adult Street Helmets - Black
  • Icon Threshold Nocturnal 2 Modular Adult Street Helmets
    Icon Threshold Nocturnal 2 Modular Adult Street Helmets - Black
  • Icon Threshold Nocturnal 2 Modular Adult Street Helmets
    Icon Threshold Nocturnal 2 Modular Adult Street Helmets - Black Side View
  • Icon Threshold Nocturnal 2 Modular Adult Street Helmets
    Icon Threshold Nocturnal 2 Modular Adult Street Helmets - Black Rear View
  • Icon Threshold Nocturnal 2 Modular Adult Street Helmets
    Icon Threshold Nocturnal 2 Modular Adult Street Helmets - Black Detailed View
This product variant is eligible for pickup. This product variant is NOT eligible for pickup.
This product variant is for PICKUP ONLY. This product variant is NOT eligible for pickup.
COLOR:
  • Black
SIZE:
Motorhelmets Buy Online Pickup In Store
Add to your Cart for Pick-up
NOTE FOR PICK-UP ORDERS:
Pick-up Only Items & Shipping Items Will Become Separate Orders at Checkout
Pick-up Order Location: Motorhelmets Fullerton CA | 1871 W. Commonwealth Ave Fullerton CA 92833
Tel: 714-879-8180 | Store Hours: M-F 10-7pm / Sat 11-6pm PST | Email: team@motorhelmets.com

Icon Threshold Nocturnal 2 Modular Adult Street Helmets

Ride the Edge of Midnight

Something ancient stirs in the dark and it recognizes its own. The night doesn’t hide you, it is your reckoning. The Threshold Nocturnal 2 wraps the shell in a blacked-out scale pattern that is subtle until it moves and calm until it strikes. Built on ICON’s Threshold platform, it brings a positive locking modular chinbar, oversized venting, Fog-Free Dropshield™, and a distortion-free Threshold™ shield into one relentless system. Move under the cover of darkness, the night belongs to those who take it.

  • Handcrafted composite fiberglass shell engineered to balance strength, impact management, and everyday rideability.
  • Designed around the most common head shape, the intermediate-oval headform ensures a soft yet secure performance feel for all day comfort.
  • Modular flip-up chinbar with an easy-open button delivers convenience without sacrificing structure or rider confidence.
  • Multiple oversized intake and exhaust ports drive consistent airflow through the helmet to help manage heat and fatigue on long or aggressive rides.
  • Equipped with a Fog-Free ThresholdShield™ for clear, uninterrupted vision across changing conditions.
  • Integrated dark smoke Threshold Dropshield™ deploys easily to cut glare when the light turns harsh.
  • Premium comfort liner with moisture-wicking Hydradry™ fabric keeps the interior dry, breathable, and comfortable mile after mile.
  • Emergency-release cheek pads allow for faster, safer helmet removal by professionals in case of emergency.
  • Designed to integrate seamlessly with ICON Helmlink™ Bluetooth communication systems (sold separately).
  • ECE 22.06 certified and DOT FMVSS No. 218 compliant, meeting the latest global safety standards for real-world street riding performance.
  • Imported
  • Colors: Black
  • Sizes: X-Small, Small, Medium, Large, X-Large, 2X-Large, 3X-Large
  • SKU: 0100-3445, 0100-3446, 0100-3447, 0100-3448, 0100-3449, 0100-3450, 0100-3451
Product Image
Color
Size
SKU
Availability
Price
Black
Black
X-Small
0100-3445-PU
In Stock
$450.00
Black
Black
Small
0100-3446-PU
In Stock
$450.00
Black
Black
Medium
0100-3447-PU
In Stock
$450.00
Black
Black
Large
0100-3448-PU
In Stock
$450.00
Black
Black
X-Large
0100-3449-PU
In Stock
$450.00
Black
Black
2X-Large
0100-3450-PU
In Stock
$450.00
Black
Black
3X-Large
0100-3451-PU
In Stock
$450.00

New or Brand New - Brand new item in original packaging (original manufacturer's warranty may apply).

Refurbished - Professionally restored and in perfect working condition. Original packaging may be missing or slightly damaged.

Used - Item has seen limited use but remains in good working condition. May show some limited signs of wear with small scratches or cosmetic blemishes. May arrive with damaged packaging or be repackaged.

Refurbished, Without Tags - Same as refurbished. Item may arrive with mising labels or tags.

Refurbished, Last Call - Same as refurbished. Last call or closeout item.

Icon Helmets Size Charts

HELMET

Wrap a flexible tape measure around your head approximately one inch above the eyebrows and ears. Use this measurement (in either inches or centimeters) to find your helmet size in the chart below.

Elsinore Helmet Sizing Chart
Shell XS S M L XL 2XL 3XL
Hat Size 21 1/4 - 21 5/8 21 5/8 - 22 22 1/2 - 22 7/8 22 7/8 - 23 1/4 23 5/8 - 24 24 3/8 - 24 3/4 25 1/4 - 25 5/8
Centimeters 54-55 55-56 57-58 58-59 60-61 62-63 64-65

Domain Helmet Sizing Chart
Shell XS S M L XL 2XL 3XL
Hat Size 6 5/8 - 6 3/4 6 7/8 - 7 7 1/8 - 7 1/4 7 3/8 - 7 1/2 7 5/8 - 7 3/4 7 7/8 - 8 8 1/8 - 8 1/4
Inches 20 7/8 - 21 1/4 21 5/8 - 22 22 3/8 - 22 3/4 23 1/8 - 23 1/2 24 - 24 3/8 24 3/4 - 25 1/8 25 1/2 - 26
Centimeters 53-54 55-56 57-58 59-60 61-62 63-64 65-66

Airframe Pro Helmet Sizing Chart
Shell 2XS XS S M L XL 2XL 3XL
Hat Size 6 3/8 - 6 1/2 6 5/8 - 6 3/4 6 7/8 - 7 7 1/8 - 7 1/4 7 3/8 - 7 1/2 7 5/8 - 7 3/4 7 7/8 - 8 8 1/8 - 8 1/4
Inches 20 1/8 - 20 1/2 20 7/8 - 21 1/4 21 5/8 - 22 22 3/8 - 22 3/4 23 1/8 - 23 1/2 24 - 24 3/8 24 3/4 - 25 1/8 25 1/2 - 26
Centimeters 51-52 53-54 55-56 57-58 59-60 61-62 63-64 65-66
Variant Pro Helmet Sizing Chart
Shell XS S M L XL 2XL 3XL
Hat Size 6 5/8 - 6 3/4 6 7/8 - 7 7 1/8 - 7 1/4 7 3/8 - 7 1/2 7 5/8 - 7 3/4 7 7/8 - 8 8 1/8 - 8 1/4
Inches 20 7/8 - 21 1/4 21 5/8 - 22 22 3/8 - 22 3/4 23 1/8 - 23 1/2 24 - 24 3/8 24 3/4 - 25 1/8 25 1/2 - 26
Centimeters 53-54 55-56 57-58 59-60 61-62 63-64 65-66

Airflite Helmet Sizing Chart
Shell XS S M L XL 2XL 3XL
Hat Size 6 5/8 - 6 3/4 6 7/8 - 7 7 1/8 - 7 1/4 7 3/8 - 7 1/2 7 5/8 - 7 3/4 7 7/8 - 8 8 1/8 - 8 1/4
Inches 20 7/8 - 21 1/4 21 5/8 - 22 22 3/8 - 22 3/4 23 1/8 - 23 1/2 24 - 24 3/8 24 3/4 - 25 1/8 25 1/2 - 26
Centimeters 53-54 55-56 57-58 59-60 61-62 63-64 65-66

Airform Helmet Sizing Chart
Shell XS S M L XL 2XL 3XL
Hat Size 6 5/8 - 6 3/4 6 7/8 - 7 7 1/8 - 7 1/4 7 3/8 - 7 1/2 7 5/8 - 7 3/4 7 7/8 - 8 8 1/8 - 8 1/4
Inches 20 7/8 - 21 1/4 21 5/8 - 22 22 3/8 - 22 3/4 23 1/8 - 23 1/2 24 - 24 3/8 24 3/4 - 25 1/8 25 1/2 - 26
Centimeters 53-54 55-56 57-58 59-60 61-62 63-64 65-66

*  Sizing information is provided by the manufacturer and does not guarantee a perfect fit.

Icon Jackets Size Charts

CHEST

While standing with your arms relaxed at your side, wrap a flexible tape measure around your chest at its largest point. The tape measure should go through your armpit and stay parallel with the floor while taking the measurement.

SLEEVE

While standing with your arms relaxed at your side, place one end of a flexible tape measure on your spine at the base of your neck. Measure over the top of your shoulder, down over the point of your elbow, and finish at the wrist bone.

Men's Jacket Sizing Chart
Size XS S M L XL 2XL 3XL 4XL 5XL
Chest Inches 34"-36" 36-38 38-40 40-42 42-44 46-48 48-50 52-54 54-56
Sleeve Inches 30 31 32 33 34 35 36 37 38
Men's Jacket Conversion Chart
Size XS S M L XL 2XL 3XL 4XL 5XL
United Kingdom 36 38 40 42/44 44/46 48 50 54 56
Europe 46 48 50 54 56 58 60 64 66

*  Sizing information is provided by the manufacturer and does not guarantee a perfect fit.

Icon Vest Size Charts

CHEST

While standing with your arms relaxed at your side, wrap a flexible tape measure around your chest at its largest point. The tape measure should go through your armpit and stay parallel with the floor while taking the measurement.

Men's Vest Sizing Chart
Vest Size XS S M L XL 2XL 3XL 4XL 5XL
Jacket Size XS S M L XL 2XL 3XL 4XL 5XL
Chest (Inches) 34-36 36-38 38-40 40-42 42-46 46-48 48-52 52-54 54-56
Men's Vest Conversion Chart
Vest Size XS S M L XL 2XL 3XL 4XL 5XL
United Kingdom 36 38 40 42/44 44/46 48 50 54 56
Europe 46 48 50 54 56 58 60 64 66

*  Sizing information is provided by the manufacturer and does not guarantee a perfect fit.

Icon Gloves Size Charts

GLOVES

ICON glove size is determined by measuring the width of your palm at its widest point - a little below the knuckles.

Men's Glove Sizing Chart
Size Inches Europe Centimeters
S 6 1/2 - 7 7 16.5 - 17.8
M 7 1/2 - 8 8 19.1 - 20.3
L 8 1/2 - 9 9 21.6 - 22.9
XL 9 1/2 - 10 10 24.1 - 25.4
2XL 10 1/2 - 11 11 26.7 - 27.9
3XL 11 1/2 - 12 12 29.2 - 30.5
4XL 12 1/2 - 13 13 31.8 - 33.0

*  Sizing information is provided by the manufacturer and does not guarantee a perfect fit.

Icon Pants Size Charts

Pant Sizing Information

There are three variables to consider when sizing ICON pants. The first two are the waist and inseam measurements, which are what your pant size is based on. The third is the fit type of the pant. Measurement instructions and sizing charts can be found below. The fit type of every ICON pant can be found in the first bullet point of the copy block for that individual product.

Waist Measurement Information

While standing in a relaxed position, measure around your natural waistline, while keeping the tape measure parallel to the floor.

Inseam Measurement Information

While standing in a relaxed position, measure the total length of the inside of your leg, from crotch to ankle.

Men's Pant Sizing Chart

Waist (Inches) 28" 30" 32" 34" 36" 38" 40" 42" 44" 46" 48" 50" 52" 54"
Inseam (Inches) 32" 32" 33" 33" 33" 34" 34" 34" 34" 34" 34" 34" 34" 34"

Men's Pant Conversion Chart

Waist (Inches) 28" 30" 32" 34" 36" 38" 40" 42" 44" 46" 48" 50" 52" 54"
United Kingdom 28" 30" 32" 34" 36" 38" 40" 42" 44" 46" 48" 50" 52" 54"
Europe 44 46 48 50 52 54 56 58 60 62 64 66 68 70

*  Sizing information is provided by the manufacturer and does not guarantee a perfect fit.

Icon Overpants Size Charts

WAIST

While standing in a relaxed position, measure around your natural waistline, while keeping the tape measure parallel to the floor.

Men's Overpant Sizing Chart
Size S M L XL 2XL 3XL 4XL
Waist (Inches) 30-32 32-34 34-36 36-38 38-40 40-42 42-44
Men's Overpant Conversion Chart
Size S M L XL 2XL 3XL 4XL
United Kingdom 30-32 32-34 34-36 36-38 38-40 40-42 42-44
Europe 46-48 48-50 50-52 52-54 54-56 56-58 58-60

*  Sizing information is provided by the manufacturer and does not guarantee a perfect fit.

Icon Footwear Size Charts
Men's Footwear Sizing Chart
United States 7 8 8.5 9 9.5 10 10.5 11 11.5 12 13 14
United Kingdom 6.5 7.5 8 8.5 9 9.5 10 10.5 11 11.5 12.5 13.5
Europe 39 41 42 43 43.5 44 44.5 45 45.5 46 47 48.5

*  Sizing information is provided by the manufacturer and does not guarantee a perfect fit.

Icon Apparel Size Charts

Apparel

Men's Apparel Sizing Chart
Size S M L XL 2XL 3XL 4XL
Chest (Inches) 36-38 38-40 40-42 42-44 46-48 48-50 52-54
Sleeve (Inches) 31 32 33 34 35 36 37
Men's Apparel Conversion Chart
Size S M L XL 2XL 3XL 4XL
United Kingdom 38 40 42/44 44/46 48 50 54
Europe 48 50 54 56 58 60 64

*  Sizing information is provided by the manufacturer and does not guarantee a perfect fit.

Icon Jackets Size Charts

CHEST

While standing with your arms relaxed at your side, wrap a flexible tape measure around your chest at its largest point. The tape measure should go through your armpit and stay parallel with the floor while taking the measurement.

SLEEVE

While standing with your arms relaxed at your side, place one end of a flexible tape measure on your spine at the base of your neck. Measure over the top of your shoulder, down over the point of your elbow, and finish at the wrist bone.

Women's Jacket Sizing Chart
Size XS S M L XL 2XL 3XL
Chest (Inches) 33 35 37 39 41 43 45
Sleeve (Inches) 29 29 1/2 30 30 1/2 31 31 1/2 32
Women's Jacket Conversion Chart
Size XS S M L XL 2XL 3XL
United Kingdom 5 7 9 11 13 15 17
Europe 40 42 44 46 48 50 52

*  Sizing information is provided by the manufacturer and does not guarantee a perfect fit.

Icon Vest Size Charts

CHEST

While standing with your arms relaxed at your side, wrap a flexible tape measure around your chest at its largest point. The tape measure should go through your armpit and stay parallel with the floor while taking the measurement.

Women's Vest Sizing Chart
Vest Size XS S M L XL 2XL 3XL
Jacket Size XS S M L XL 2XL 3XL
Chest (Inches) 33 35 37 39 41 43 45

Women's Vest Conversion Chart
Vest Size XS S M L XL 2XL 3XL
United Kingdom 5 7 9 11 13 15 17
Europe 40 42 44 46 48 50 52

*  Sizing information is provided by the manufacturer and does not guarantee a perfect fit.

Icon Gloves Size Charts

GLOVES

ICON glove size is determined by measuring the width of your palm at its widest point - a little below the knuckles.

Women's Glove Sizing Chart
Size XS S M L XL 2XL
Inches 5 3/4 - 6 6 1/4 - 6 1/2 6 3/4 - 7 7 1/4 - 7 1/2 7 3/4 - 8 8 1/4 - 8 1/2
Women's Glove Conversion Chart
Europe 6 6.5 7 7.5 8 8.5
Size XS S M L XL 2XL
Centimeters 14.6-15.2 15.9-16.5 17.1-17.8 18.4-19.1 19.7-20.3 21-21.6

*  Sizing information is provided by the manufacturer and does not guarantee a perfect fit.

Icon Pants Size Charts

WAIST

While standing in a relaxed position, measure around your natural waistline, while keeping the tape measure parallel to the floor.

INSEAM

While standing in a relaxed position, measure the total length of the inside of your leg, from crotch to ankle.

Women's Pant Sizing Chart
Waist Inches 23 25 27 29 31 33 35 37
Size 0 2 4 6 8 10 12 14
Inseam Inches 28.5-29 29-29.5 29.5-30 30-31 30-31 31-32 31-32 31-32
Women's Pant Conversion Chart
Size 1 3 5 7 9 11 13 15
United Kingdom 3 5 7 9 11 13 15 17
Europe 38 40 42 44 46 48 50 52

*  Sizing information is provided by the manufacturer and does not guarantee a perfect fit.

Icon Overpants Size Charts

WAIST

While standing in a relaxed position, measure around your natural waistline, while keeping the tape measure parallel to the floor.

Women's Overpant Sizing Chart
Size XS S M L XL
Pant Size 0-1 2-3 4-7 8-11 12-14
Waist (Inches) 24-26 26-28 28-30 30-32 32-34

Women's Overpant Sizing Chart
Size XS S M L XL
United Kingdom 3-5 5-7 7-9 9-11 11-13
Europe 38-40 40-42 42-44 44-46 46-48

*  Sizing information is provided by the manufacturer and does not guarantee a perfect fit.

Icon Footwear Size Charts
Women's Footwear Sizing Chart
United States 5 5.5 6 6.5 7 7.5 8 8.5 9 9.5 10
United Kingdom 2.5 3 3.5 4 4.5 5 5.5 6 6.5 7 7.5
Europe 35 35.5 36 37 37.5 38 38.5 39 40 41 42

*  Sizing information is provided by the manufacturer and does not guarantee a perfect fit.

Icon Apparel Size Charts

Apparel

Women's Apparel Sizing Chart
Size XS S M L XL 2XL
Chest (Inches) 33 35 37 39 41 43
Sleeve (Inches) 29 29 1/2 30 30 1/2 31 31 1/2
Women's Apparel Conversion Chart
Size XS S M L XL 2XL
United Kingdom 5 7 9 11 13 15
Europe 40 42 44 46 48 50

*  Sizing information is provided by the manufacturer and does not guarantee a perfect fit.

More From Icon

New Arrival Items

Recently Viewed Products

Free Shipping Over $200
10% Off on Orders Over $200
15% Off on Pickup Orders
SKU:
ADD TO WISH LIST
Color:
Size:
Quantity
View Product