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Looking for the perfect-fitting Shoei motorcycle helmet? Our fitment guide breaks down everything you need to know — from how to measure your head to signs your helmet is too big or too small. Whether you're rocking the Shoei RF-1400, Shoei VFX-EVO, or any other model, proper fit is the key to safety and comfort on every ride.
Why Proper Helmet Fitment Matters
A properly fitted Shoei helmet:
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Enhances protection during crashes
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Improves comfort on long rides
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Reduces wind noise and fatigue
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Keeps the helmet secure at high speeds
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Ensures compliance with DOT and SNELL certification
How to Measure Your Head for a Shoei Helmet
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Wrap a soft tape measure around your head, 1 inch above the eyebrows.
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Find the largest circumference and compare with the size chart.
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If between sizes, start with the smaller one.
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Try on and test fitment before riding.
Shop all Shoei Helmets
Explore the popular Shoei RF-1400
Check out the Shoei VFX-EVO Off-Road Helmet
Helmet Fitment Checklist
After putting the helmet on, confirm these:
Feels snug around the entire head
Cheek pads create light pressure and move with facial motion
Crown padding presses on top of the head evenly
Eyes are centered in the eyeport
Loose helmet? Explore helmet cheek pads & accessories to improve fitment.
Rotation Test
Step 1: Strap it up. Push the helmet forward.
Step 2: Push it backward.
If it slides easily — it's too big.
If it stays put — you're good to go.
Ride Safer with a Shoei Helmet That Fits Right
When it comes to Shoei street bike helmets, dual sport helmets, or off-road options, proper sizing can make all the difference. Don’t compromise — find your perfect fit and ride with confidence.
EVS Sports Sizing Chart: Find the Perfect Fit for Your Protective Gear
EVS Sports has spent decades engineering rider-first protection — from the knee braces that set the standard for motocross joint stabilization to roost deflectors, ballistic jerseys, and support gear trusted by pros and weekend warriors alike. Because every category uses a different fit logic (head circumference for helmets, body weight for roost guards, calf and thigh measurements for knee braces), you need the right chart for the right product. Use the guide below to size every piece of EVS gear you buy at BTO Sports the first time, whether you ride motocross, off-road, BMX, or on the street.
Grab a soft tape measure, a friend for the chest and back measurements, and scroll to the category you need. If your measurement falls between two sizes, size up — a brace or protector that's too tight will cut circulation and shift under impact.
How to Measure for EVS Gear
Head: Using a cloth tape, measure the circumference of your head about one inch above the eyebrows in front and around the largest point at the back. This is the number you match to EVS helmet sizes.
Chest: Lift your arms, have a friend wrap the tape under your armpits, then lower it to the widest part of your chest. Keep the tape level front to back. This measurement drives body armor, ballistic jerseys, and shoulder support.
Knee (calf & thigh): Measure the circumference of your calf 8 inches (20 cm) below the center of the knee and your thigh 8 inches (20 cm) above the center of the knee. EVS knee braces use both numbers.
Hands: Measure around the widest part of your palm, just below the knuckles, not including the thumb. Match that circumference to the glove size.
Waist & hips: For base layers and kidney belts, measure your natural waist (narrowest point) and the fullest part of your hips.
Height & weight: For race collars, roost deflectors, and youth armor, EVS sizes by height and weight rather than circumference — have both numbers ready.
EVS Helmets Sizing Chart
The EVS T5 and Venture helmets follow standard head-circumference sizing. Measure your head one inch above the eyebrows and match it to the chart below.
| Size | Hat Size | Head Circumference (in) | Head Circumference (cm) |
|---|---|---|---|
| XS | 6 – 6 3/8" | 21.2 – 21.6" | 53 – 54 |
| S | 6 3/8 – 6 7/8" | 21.7 – 22" | 55 – 56 |
| M | 7 – 7 1/8" | 22.4 – 22.8" | 57 – 58 |
| L | 7 1/4 – 7 3/8" | 23.2 – 23.6" | 59 – 60 |
| XL | 7 1/2 – 7 5/8" | 24 – 24.4" | 61 – 62 |
| XXL | 7 3/4 – 8" | 24.8 – 25.2" | 63 – 64 |
EVS Knee Braces Sizing Chart
EVS knee braces are sized by calf and thigh circumference measured 8 inches above and below the center of the knee. The Web Pro, Axis Pro, Axis Sport, and RS9 share one chart; the SX01 and SX02 use a mid-knee measurement instead.
Web Pro, Axis Pro, Axis Sport & RS9
| Size | Calf | Thigh |
|---|---|---|
| S | 23 – 30 cm (9 – 12") | 38 – 46 cm (15 – 18") |
| M | 30 – 36 cm (12 – 14") | 46 – 51 cm (18 – 20") |
| L | 36 – 41 cm (14 – 16") | 51 – 58 cm (20 – 23") |
| XL | 41 – 46 cm (16 – 18") | 58 – 66 cm (23 – 26") |
SX01 & SX02
| Size | Mid Knee |
|---|---|
| Y | 27 – 30 cm (10.5 – 12") — SX01 only |
| S | 30 – 34 cm (12 – 13.5") |
| M | 34 – 38 cm (13.5 – 15") |
| L | 38 – 42 cm (15 – 16.5") |
| XL | 42 – 46 cm (16.5 – 18") |
If you're comparing brace styles, the category hub at knee braces covers the full EVS lineup alongside other top brands.
EVS Knee Protection Sizing Chart
EVS knee guards and knee pads size by rider height and weight, with a dedicated chart per model. Epic, Option, and TP199 each have their own fit logic.
Epic Knee Pads
| Size | Height |
|---|---|
| S/M | Under 5'6" (154 cm) |
| L/XL | 5'6"+ (154 cm +) |
Option Knee Pads
| Size | Height | Weight |
|---|---|---|
| Mini | Under 4'6" (135 cm) | Under 75 lbs (34 kg) |
| Y | 4'6" – 5'5" (135 – 154 cm) | 75 – 115 lbs (34 – 52.2 kg) |
| A | 5'5"+ (154 cm +) | 115 lbs + (52.2 kg +) |
TP199 & TP199 Lite Knee Guards
| Size | Height | Weight |
|---|---|---|
| Y | Up to 5' (152 cm) | Under 115 lbs (40.8 kg) |
| S/M | 5' – 5'10" (152 – 178 cm) | 115 – 165 lbs (40.8 – 74.8 kg) |
| L/XL | 5'10"+ (178 cm +) | 165 lbs + (74.8 kg +) |
EVS Elbow Protection Sizing Chart
EVS elbow guards run on a mix of height/weight and bicep/forearm circumference depending on the model. All models live inside the EVS dirt bike protection collection.
Epic Elbow Pads
| Size | Height |
|---|---|
| S/M | Under 5'6" (152 cm) |
| L/XL | 5'6"+ (152 cm +) |
Option Elbow Pads
| Size | Height | Weight |
|---|---|---|
| Mini | Under 4'6" (135 cm) | Under 75 lbs (34 kg) |
| Y | 4'6" – 5'5" (135 – 154 cm) | 75 – 115 lbs (34 – 52.2 kg) |
| A | 5'5"+ (154 cm +) | 115 lbs + (52.2 kg +) |
Flex Lite & TP199 Elbow Guards
| Size | Upper Bicep | Lower Forearm |
|---|---|---|
| S/M | 11 – 13.5" (30 – 35 cm) | 7 – 8" (17 – 20 cm) |
| L/XL | 13.5 – 16" (35 – 40 cm) | 8 – 9" (20 – 23 cm) |
HEX Pro Elbow Pads
| Size | Bicep |
|---|---|
| S/M | 9 – 11" (22.8 – 27.9 cm) |
| L/XL | 11 – 13" (27.9 – 33.0 cm) — also 13 – 15" (33.0 – 38.1 cm) |
| XXL | 15 – 18" (38.1 – 45.7 cm) — also 18 – 21" (45.7 – 53.3 cm) |
EVS Roost Deflectors Sizing Chart
EVS roost deflectors and chest protectors are sized by rider weight. The F2 and Vex share one chart; the F1, Revo 5, and Revo 4 share another; Bantam fits the youngest riders.
F2 & Vex
| Size | Weight |
|---|---|
| S | Under 75 lbs (34 kg) |
| M | 75 – 140 lbs (34 – 63.5 kg) |
| L | 140 – 190 lbs (63.5 – 86.2 kg) |
| XL | 190 lbs + (86.2 kg +) — F2 only |
F1, Revo 5 & Revo 4
| Size | Weight |
|---|---|
| S/M | Under 125 lbs (57 kg) |
| L/XL | 125 lbs + (57 kg +) |
Bantam (Youth)
| Size | Age Range | Weight |
|---|---|---|
| S/M | 3 – 5 yrs | 28 – 40 lbs |
| L/XL | 6 – 9 yrs | 38 – 55 lbs |
EVS Race Collars Sizing Chart
The R4, R3, and R2 race collars are sized by rider height and weight. Pair yours with an EVS roost guard for a fully connected upper-body system — the EVS dirt bike protection collection has all compatible deflectors.
| Size | Height | Weight |
|---|---|---|
| Y | Under 5'3" (160 cm) | Under 105 lbs (48 kg) |
| A | 5'3"+ (160 cm +) | 105 lbs + (48 kg +) |
EVS Gloves Sizing Chart
All EVS moto and street gloves use the same palm-width chart. Measure the widest part of your hand just below the knuckles, excluding the thumb.
| Size | Palm Width (cm) | Palm Width (in) |
|---|---|---|
| S | 18.2 – 18.8 cm | 7 1/8 – 7 3/8" |
| M | 18.8 – 19.4 cm | 7 3/8 – 7 5/8" |
| L | 19.4 – 20 cm | 7 5/8 – 7 7/8" |
| XL | 20 – 20.6 cm | 7 7/8 – 8 1/8" |
| XXL | 20.6 – 21.2 cm | 8 1/8 – 8 3/8" |
EVS Tug Base Layers Sizing Chart
EVS Tug base layers add compression and light protection under your jersey and pants. Tug Tops size by chest and waist; Tug Bottoms size by waist and hips. Layer them under anything in the EVS collection.
Tug Tops
| Size | Chest (in / cm) | Waist (in / cm) |
|---|---|---|
| S | 29 – 32 / 73 – 81 | 35 – 37 / 88 – 96 |
| M | 32 – 35 / 81 – 89 | 37 – 41 / 96 – 104 |
| L | 35 – 38 / 89 – 97 | 41 – 44 / 104 – 112 |
| XL | 38 – 43 / 97 – 109 | 44 – 47 / 112 – 120 |
| XXL | 43 – 47 / 109 – 121 | 47 – 50 / 120 – 128 |
| Y-M | 27 – 29.5 / 69 – 75 | 25.5 – 27 / 69 – 75 |
| Y-L | 29.5 – 32 / 75 – 81.5 | 27 – 28.5 / 75 – 81 |
Tug Bottoms
| Size | Waist (in / cm) | Hip (in / cm) |
|---|---|---|
| S | 29 – 32 / 73 – 81 | 35 – 37 / 88 – 96 |
| M | 32 – 35 / 81 – 89 | 37 – 41 / 96 – 104 |
| L | 35 – 38 / 89 – 97 | 41 – 44 / 104 – 112 |
| XL | 38 – 43 / 97 – 109 | 44 – 47 / 112 – 120 |
| XXL | 43 – 47 / 109 – 121 | 47 – 50 / 120 – 128 |
| Y-M | 25.5 – 27 / 65 – 69 | 29.5 – 31 / 74.5 – 79 |
| Y-L | 27 – 28.5 / 69 – 72 | 31 – 33.5 / 79 – 84 |
EVS Socks Sizing Chart
EVS Moto, Coolmax®, Shorty, and Fusion socks size by shoe size. The Fusion Sock also has a youth size for riders under 125 lbs (56.7 kg). Browse more options in the riding socks collection.
| Size | Shoe Size |
|---|---|
| Y (Fusion Sock only) | Under 125 lbs (56.7 kg) |
| S/M | 7 – 10 |
| L/XL | 10 – 13 |
EVS Street Body Armor Sizing Chart
EVS street body armor — including the Sport Vest CE Level 1 and Touring Vest — sizes by chest measurement.
Sport Vest CE Level 1 & Touring Vest
| Size | Chest |
|---|---|
| S/M | 91.4 – 101.6 cm (36 – 40") |
| L/XL | 101.6 – 112 cm (40 – 44") |
| XXL | 117 – 127 cm (46 – 50") |
EVS Ballistic Jerseys Sizing Chart
EVS ballistic jerseys — G7, G7 Lite, Comp Suit, and Ballistic Pro — deliver full upper-body armor in a jersey-style shell. All adult jerseys size by chest measurement; the Comp Suit Youth uses height and weight. Shop the lineup in EVS dirt bike protection.
G7, G7 Lite & Comp Suit
| Size | Chest |
|---|---|
| S | 76 – 84 cm (30 – 33") |
| M | 84 – 91 cm (33 – 36") |
| L | 91 – 99 cm (36 – 39") |
| XL | 99 – 107 cm (39 – 42") |
| XXL | 107 – 114 cm (42 – 45") |
| XXXL | 114 – 123 cm (45 – 48") — G7 and G7 Lite only |
| XXXXL | 123 – 130 cm (48 – 51") — G7 and G7 Lite only |
Ballistic Pro
| Size | Chest |
|---|---|
| S | 76 – 84 cm (30 – 33") |
| M | 84 – 91 cm (33 – 36") |
| L | 91 – 99 cm (36 – 39") |
| XL | 99 – 107 cm (39 – 42") |
| XXL | 107 – 114 cm (42 – 45") |
| XXXL | 114 – 123 cm (45 – 48") |
Comp Suit Youth
| Size | Height | Weight |
|---|---|---|
| S | 112 – 132 cm (3'9" – 4'4") | 45 – 60 lbs |
| M | 132 – 145 cm (4'4" – 4'9") | 60 – 75 lbs |
| L | 145 – 160 cm (4'9" – 5'3") | 75 – 90 lbs |
Shopping for younger riders? The EVS youth protection collection groups every scaled-down EVS armor and brace in one place.
EVS Support Gear Sizing Chart
EVS shoulder, knee, kidney, and ankle supports each have a different measurement driver. All sit under the broader EVS hub.
Shoulder Support — SB05, SB04, SB03, SB02
| Size | Chest | Bicep |
|---|---|---|
| S | 76 – 91 cm (30 – 36") | 22.8 – 27.9 cm (9 – 11") |
| M | 91 – 101 cm (36 – 40") | 27.9 – 33.0 cm (11 – 13") |
| L | 101 – 111 cm (40 – 44") | 33.0 – 38.1 cm (13 – 15") |
| XL | 111 – 121 cm (44 – 48") | 38.1 – 45.7 cm (15 – 18") |
| XXL | 121 – 132 cm (48 – 52") | 45.7 – 53.3 cm (18 – 21") |
Knee Support — KS61 & KS199
| Size | Mid Knee |
|---|---|
| S | 30 – 34 cm (12 – 13.5") |
| M | 34 – 38 cm (13.5 – 15") |
| L | 38 – 42 cm (15 – 16.5") |
| XL | 42 – 46 cm (16.5 – 18") |
| XXL | 46 – 50 cm (18 – 19.5") — KS61 only |
Kidney Belts — BB1 Celtek & BB1 Celtek Air
| Size | Waist |
|---|---|
| Y (BB1 only) | 61 – 71 cm (24 – 28") |
| S | 71 – 81 cm (28 – 32") |
| M | 81 – 91 cm (32 – 36") |
| L | 91 – 96.5 cm (36 – 38") |
| XL | 96.5 – 101.6 cm (38 – 40") |
| XXL | 101.6 – 106.7 cm (40 – 42") |
Ankle Support — AB07, AS14 & AS06
| Size | Shoe Size |
|---|---|
| S | 6 – 8 |
| M | 8 – 10 |
| L | 10 – 12 |
| XL | 12 – 14 |
Why Proper Sizing for EVS Gear Matters
EVS gear is engineered to work as a system — a knee brace that doesn't fit the calf won't lock the joint, a roost guard that's oversized will shift on landings, and a base layer that's too loose won't hold your armor in place. Sizing up or down by a single size can take a piece of CE-rated protection and drop its real-world effectiveness. Take five minutes with a tape measure now and save yourself from a return — or worse, an injury. For a broader look at every brand we carry, the BTO Sports sizing hub has size guides for every major motocross and dirt bike brand.
Once you've nailed your size, pair your EVS kit with the rest of your setup from our dirt bike gear lineup or our full protective gear collection.
Get Expert Help with EVS Sizing at BTO Sports
Between knee braces, roost guards, ballistic jerseys, and support gear, EVS makes a lot of pieces — and fit questions come with the territory. Our crew rides this stuff and can help you pick the right size, compare two models, or decide between a brace and a guard for your riding style. Reach out before you order.
Phone: 1-805-777-7601 / 1-888-613-3393 (Toll-Free)
Email: cs@btosports.com