Blue and black motocross pants with white branding, including 'dbl.' on the left thigh and 'FLY' on the right hip, shown against a plain white background.

Blue and black motocross pants with white 'FLY' and 'dlbk' branding, shown on a plain white background.

Product Details

The Fly Racing Evolution DST DBK Pants are built for riders who demand premium performance, unrestricted mobility, and exclusive rider-inspired style. Featuring distinctive DBK graphics, these premium race pants combine Fly Racing's most advanced materials with proven race-ready construction for motocross, off-road, and enduro riding.

Constructed with Fly Racing's Durable Stretch Technology (DST) using four-way HEX-Stretch fabric, the Evolution DST DBK Pants move naturally with your body while delivering exceptional durability in high-stress areas. Strategically placed laser-cut perforations and stretch mesh ventilation panels maximize airflow to help regulate body temperature during demanding motos and long trail rides.

Heat-resistant leather inner knee panels reinforced with durable Aramid stitching provide long-lasting protection against engine heat and abrasion, while additional Aramid reinforcement surrounding the knees increases durability where riders need it most. The breathable mesh seat panel minimizes pulling and bunching, allowing unrestricted movement whether you're standing through whoops or navigating technical terrain.

A micro-adjustable BOA Fit System creates a secure, personalized fit with quick on-the-fly adjustments, while ergonomically pre-shaped knees comfortably accommodate most knee braces and guards. Finished with a full-floating 900D seat, moisture-wicking Lycra liner, and Fly Racing's exclusive zipper lock system, the Evolution DST DBK Pants are engineered to perform at the highest level every ride.

Features

DST (Durable Stretch Technology) constructed of four-way HEX-Stretch fabric provides excellent mobility with heavy-duty durability
Strategically placed stretch-mesh ventilation and laser-cut perforations in key areas for advanced airflow
Leather heat shield panels fastened with high-tension, heat-resistant Aramid stitching
Additional heat and abrasion resistant Aramid fabric surrounding knee panels
Seat panel sewn to breathable light mesh reduces pulling
Advanced Lycra® liner adds increased comfort and performance
BOA® Fit System – Provides a micro-adjustable, precision fit, engineered to perform in the toughest conditions
Ergonomically pre-shaped knee accommodates most guards
Full-Floating durable 900D seat surrounded by HEX-Stretch material moves naturally with your body
Exclusive zipper lock system keeps pants closed and secure

Sizing Info

The Fly Racing Evolution DST DBK Pants feature an athletic performance fit designed to be worn with knee guards or knee braces. Most riders should order their normal waist size. The BOA Fit System allows quick, precise waist adjustments for a secure fit. If you wear oversized knee braces or are between sizes, consider sizing up. For the best fit, compare your measurements with the Fly Racing pants size chart before ordering.

Payment & Security

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

New

Fly Racing Evolution DST DBK Pants (2027)

Name: Fly Racing Evolution DST DBK Pants (2027)
Brand: Fly Racing
Price: 249.95 USD
Availability: InStock

Brand: Fly Racing

Type: Pant

$249.95

$249.95 ~~$249.95~~

Shipping calculated at checkout.

Available in stock (54)

Riding Styles

Motocross (MX), Off-Road

The Fly Racing Evolution DST DBK Pants deliver elite-level motocross performance with exclusive DBK styling. Durable Stretch Technology, the BOA Fit System, premium ventilation, and race-proven construction provide unmatched mobility, comfort, and control.

Color: Blue/Black/White

Size: US 28

US 28 US 30 US 32 US 34 US 36 US 38

Fly Racing Size Charts

Street Jackets and Pants

Men's Jacket & Pants Size Chart

Standard Jacket

Size	S	M	L	XL	2XL	3XL	4XL
Sleeve	31-32"	32-33"	33-34"	34-35"	37"	37"	37"
Chest	34-35"	36-38"	40-42"	44-46"	48-50"	52-54"	56-58"

Tall Jacket

Size	M	L	XL	2XL	3XL
Sleeve	34½-35½"	35½-36½"	36½-37½"	39½"	39½"
Chest	36-38"	40-42"	44-46"	48-50"	52-54"

Standard Pants

Size	30	32	34	36	38	40
Waist	30½-32"	32½-34"	34½-36"	36½-38"	38½-40"	40½-42"
Inseam	29"	31"	32"	33"	33½"	34"

How to Measure for Fitment

Sleeve: Measure from the center of the spine at the base of the neck around the shoulder, over the elbow and down to the wrist.

Chest: Measure around the broadest part of the chest, 1-2 inches below the armpits.

Waist: Measure about 1 inch below the top of the pelvic bone.

Inseam: Measure down from the crotch to the top of the ankle bone.

Women's Sizing Chart

Jacket

Size	Sleeve	Chest	Waist
XS	28"	32"	24"
SM	29"	35"	27"
MD	30"	38"	29.5"
LG	31"	41"	32.5"
XL	32"	45"	36.5"
2X	33"	49"	40.5"
3X	33"	53"	44.5"
4X	33"	57"	48.5"

Pants

Alpha Size	Numeric Size	Waist	Inseam
XS	0-2	28-30"	32"
SM	3-4	31-33"	33"
MD	5-6	34-36"	33"
LG	7-8	36-37"	33"
XL	9-12	38-41"	34"
2X	13-16	42-46"	34"

How to Measure

Sleeve: Measure from the center of the spine at the base of the neck around the shoulder, over the elbow and down to the wrist.

Bust: Measure around the fullest part of the bust.

Waist: Measure around the narrowest part of the waist.

Hip: Measure around the body halfway between the belly button and the crotch.

Inseam: Measure down from the crotch to the top of the ankle bone.

Moto Racewear & Snow Apparel

Off-Road

Men’s Jerseys Size Chart

How to Measure

1. Sleeve: Measure from the center of the spine at the base of the neck, around the shoulder, over the elbow and down to the wrist.

2. Chest: Measure around the broadest part of the chest, 1–2 inches below the armpits.

Size	Sleeve	Chest
SM	31–32"	34–35"
MD	32–33"	36–38"
LG	33–34"	40–42"
XL	34–35"	44–46"
2X	37"	48–50"
3X	38"	52–54"
4X	38"	56–58"
5X	38"	60–62"

Women’s Jerseys Size Chart

How to Measure

1. Sleeve: Measure from the center of the spine at the base of the neck, around the shoulder, over the elbow and down to the wrist.

2. Bust: Measure around the fullest part of the bust.

3. Waist: Measure around the narrowest part of the waist.

Adult

Size	Sleeve	Bust	Waist
SM	29"	35"	25.5–26.5"
MD	30"	38"	27.5–28.5"
LG	31"	41"	30–31.5"
XL	32"	44"	33–35"
2X	33"	48"	37"

Youth Jerseys Size Chart

How to Measure

1. Sleeve: Measure from the center of the spine at the base of the neck, around the shoulder, over the elbow and down to the wrist.

2. Chest: Measure around the broadest part of the chest, 1–2 inches below the armpits.

Size	Sleeve	Chest
YS	20–21"	20–22"
YM	22–23"	24–26"
YL	24–26"	28–30"

Men’s Pants Size Chart

How to Measure

3. Waist: Measure about 1" below the pelvic bone.

4. Inseam: Measurement is actual pant inseam.

Size	Waist	Inseam	Over-Boot Inseam
28	28.5–30"	27"	31"
30	30.5–32"	28.5"	31.5"
32	32.5–34"	30"	32"
34	34.5–36"	30"	33"
36	36.5–38"	31"	34"
38	38.5–40"	31"	34"
40	40.5–42"	31"	34"
42	42.5–44"	31"	34"
44	44.5–46"	31"	34"
46	46.5–48"	31"	34"
48	48.5–50"	31"	34"

Women’s Pants Size Chart

How to Measure

3. Waist: Measure around the narrowest part of the waist.

4. Hip: Stand with your feet together and measure around the fullest part of your hips.

5. Inseam: Measurement is actual pant inseam.

Women’s Size	Men’s Size (Reference)	Waist	Inseam	Hip Max
0/2	28	26"	27"	36.5"
3/4	30	27"	28"	37.5"
5/6	32	28"	29"	38.5"
7/8	34	29"	30"	39.5"
9/10	36	30"	30"	40.5"
11/12	38	31"	30"	42"
13/14	40	32"	30"	44"
15/16	42	33"	30"	46"
17/18	44	34"	30"	48"
19/20	46	35"	30"	50"

*Cross reference to men’s size is approximate fit in comparison. Women’s pants are shaped differently than men’s to fit the female body, so there are fitment differences between men’s and women’s.

Youth Pants Size Chart

How to Measure

Hip: Stand with your feet together and measure around the fullest part of your hips.

Inseam: Measurement is actual pant inseam.

Youth

Size	Inseam	Waist
20	20"	22"
22	21"	23"
24	23"	24"
26	25"	25"

Snow

Men’s Snow Jackets Size Chart

How to Measure

1. Sleeve: Measure from the center of the spine at the base of the neck, around the shoulder, over the elbow and down to the wrist.

2. Chest: Measure around the broadest part of the chest, 1–2 inches below the arm pits.

Size	Sleeve	Chest
SM	31–32"	34–35"
MD	32–33"	36–38"
LG	33–34"	40–42"
XL	34–35"	44–46"
2X	37"	48–50"
3X	37"	52–54"
4X	37"	56–58"

Women’s Snow Jackets Size Chart

How to Measure

1. Sleeve: Measure from the center of the spine at the base of the neck, around the shoulder, over the elbow and down to the wrist.

2. Bust: Measure around the fullest part of the bust.

3. Waist: Measure around the narrowest part of the waist.

Size	Bust	Waist
XS	28"	24"
SM	29"	27"
MD	30"	29.5"
LG	31"	32.5"
XL	32"	36.5"
2X	33"	40.5"
3X	33"	44.5"
4X	33"	48.5"

Youth Snow Jackets Size Chart

How to Measure

1. Sleeve: Measure from the center of the spine at the base of the neck, around the shoulder, over the elbow and down to the wrist.

2. Chest: Measure around the broadest part of the chest, 1–2 inches below the arm pits.

Size	Sleeve	Chest
YXS (6–8)	21–23"	24–26"
YS (9–11)	23–25"	26–29"
YM (12–14)	25–27"	29–31"
YL (14–16)	27–29"	32–33"

Men’s Snow Pants Size Chart

How to Measure

3. Waist: Measure about 1" below the top of the pelvic bone.

4. Inseam: Measure down from the crotch to the top of the ankle bone.

Size	Waist	Inseam	Notes
XS	28.5–30"	29"
S	30.5–32"	30"
M	32.5–34"	31"
MT	32.5–34"	35"	SNX Only
L	34.5–36"	32"
LT	34.5–36"	36"	SNX Only
XL	36.5–38"	32.5"
XT	36.5–38"	36.5"	SNX Only
2X	38.5–40"	32.5"
3X	40.5–42"	32.5"

Aurora Adult Bib: Short adjustment position decreases length by 2.5". Tall adjustment position increases length by 2.5".

Women’s Snow Pants Size Chart

How to Measure

3. Waist: Measure around the narrowest part of the waist.

4. Hip: Measure around the body halfway between the belly button and the crotch.

5. Inseam: Measure down from the crotch to the top of the ankle bone.

Alpha Size	Numeric Size	Waist	Hip	Inseam
XS	0–2	28–30"	34–36"	32"
SM	3–4	31–33"	37–38"	33"
MD	5–6	34–36"	39–40"	33"
LG	7–8	36–37"	41–42"	33"
XL	9–12	38–41"	43–46"	34"
2X	13–16	42–46"	47–50"	34"
3X	17–20	48–50"	51–54"	34"
4X	21–24	52–54"	55–58"	34"

Youth Snow Pants Size Chart

How to Measure

3. Waist: Measure about 1" below the top of the pelvic bone.

4. Inseam: Measure down from the crotch to the top of the ankle bone.

Size	Waist	Inseam
YS (6–8)	24–26"	22"
YM (10–12)	26–28"	24"
YL (14–16)	28–30"	26"

Aurora Youth Bib: Tall adjustment position increases length by 2.5".

Street, Moto, & Snow Gloves

Glove Size Chart

How to Measure

Hand Measurement: Measure at the widest part of your palm, just below the knuckles.

Fit	S	M	L	XL	2XL	3XL	4XL
Men’s	2¾"	3¼"	3¾"	4¼"	4¾"	5¼"	5¾"
Women’s	2¼"	2¾"	3¼"	3¾"	4¼"	4¾"	5¼"

Street, Moto, and Snow Helmets

PROPER FIT

To find your approximate size use a soft tape measure. Start at your forehead approximately one inch above your eyebrows and across the largest portion of the back of your head. Cross reference this measurement on the helmet size chart to determine the approximate size.

If you do not have a soft measuring tape, use a string or phone charging cord in the same way. Then lay it down and measure with a ruler.

Adult Helmet Size Chart

How to Measure

Measure around your head using a soft sewing tape or string. Start approximately one inch above your eyebrows and measure around the largest part of the back of your head.

Size	Inches	Centimeters
XS	21–22"	53–55 cm
S	22–23"	55–57 cm
M	23–24"	57–59 cm
L	24–25"	59–61 cm
XL	25–26"	61–63 cm
2XL	26–27"	63–65 cm
3XL	27–28"	65–67 cm

Youth Helmet Size Chart

How to Measure

Measure around your head using a soft sewing tape or string. Start approximately one inch above your eyebrows and measure around the largest part of the back of your head.

Size	Inches	Centimeters
YS	18–19"	47–49 cm
YM	19–20"	49–51 cm
YL	20–21"	51–53 cm

Boots

Boot Sizing Chart

US Size	Euro Size	UK Size	Inside Length (inches)	Inside Length (cm)
7	40	6.5	9.625"	24.4
8	41	7.5	9.9375"	25.4
9	42	8.5	10.25"	26
10	43	9.5	10.5625"	27
11	44	10.5	10.9375"	27.9
12	45	11.5	11.25"	28.6
13	46	12.5	11.5625"	29.4
14	47	13.5	11.875"	30.2

Protection

Barricade Size Chart

How to Measure

Sleeve: Measure from the center of the spine at the base of the neck, around the shoulder, over the elbow and down to the wrist.

Chest: Measure around the broadest part of the chest, 1-2 inches below the armpits.

Long Sleeve

Size	Sleeve	Chest
SM	33"	34-35"
MD	33 3/4"	36-38"
LG	34 1/2"	40-42"
XL	35 1/4"	44-46"
2XL	35 3/4"	48-50"

Short Sleeve

Size	Sleeve	Chest
SM	18 1/2"	34-35"
MD	19 1/8"	36-38"
LG	19 1/2"	40-42"
XL	19 7/8"	44-46"
2XL	20 1/4"	48-50"

Youth Size Chart

Size	Sleeve	Chest
YTH	26"	26-28"

Knee & Elbow Pads Size Chart

How to Measure

A. Thigh: Measure 4" above the kneecap.

B. Calf: Measure around the widest point.

C. Bicep: Measure around the widest point.

D. Forearm: Measure 5-6" below the elbow.

Knee Pads

Size	Thigh	Calf
SM	15-17"	12-13.5"
MD	17-19"	13.5-15"
LG	19-21"	15-16.5"
XL	21-23"	16.5-18"

Elbow Pads

Size	Bicep	Forearm
SM	8-10"	7.5-8.5"
MD	10-12"	8.5-9.5"
LG	12-14"	9.5-10.5"
XL	14-16"	10.5-12"

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Product Details

Features

DST (Durable Stretch Technology) constructed of four-way HEX-Stretch fabric provides excellent mobility with heavy-duty durability
Strategically placed stretch-mesh ventilation and laser-cut perforations in key areas for advanced airflow
Leather heat shield panels fastened with high-tension, heat-resistant Aramid stitching
Additional heat and abrasion resistant Aramid fabric surrounding knee panels
Seat panel sewn to breathable light mesh reduces pulling
Advanced Lycra® liner adds increased comfort and performance
BOA® Fit System – Provides a micro-adjustable, precision fit, engineered to perform in the toughest conditions
Ergonomically pre-shaped knee accommodates most guards
Full-Floating durable 900D seat surrounded by HEX-Stretch material moves naturally with your body
Exclusive zipper lock system keeps pants closed and secure

Sizing Info

Payment & Security

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Fly Racing Evolution DST DBK Pants (2027)

$249.95

$249.95 ~~$249.95~~

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Product Details

Features

Sizing Info

Fly Racing Evolution DST DBK Pants (2027)