NIKE STREAKFLY 2 ROAD RACING SHOES
Carbon fiber and ultralight foam power your race-day speed.
The Streakfly 2 can help you out-kick the opposition on race day. This speedster now comes with a carbon fiber Flyplate, complementing the ultraresponsive ZoomX foam midsole and minimal upper you loved on the original. From the 10K to the mile, it can help you take your distances to the next level.
Full Speed
We integrated a full-length carbon fiber Flyplate that delivers a propulsive feel. It helps you smoothly transition through every stride and tackle turns with confidence.
Optimal Responsiveness
ZoomX foam, our most responsive foam, provides optimal responsiveness. The result is a shoe so light, it feels like it disappears on your foot while still helping you reach your fastest pace.
Sticky Outsole
The outsole is made of a thin, sticky, webbed substance that helps reduce the weight of the shoe while still providing optimal traction.
Carbon fiber Flyplate
More Details
- Weight: Approx. 145g/5.1oz (Men's US 10)
- Heel-to-toe drop: 4mm
YOUR SHOPPING JOURNEY STARTS HERE.
Discover your favorite styles online and find them at a store near you.
STORE LOCATIONS
FIND YOUR SIZE
NIKE
FOOTWEAR
| US - MEN'S | US - WOMEN'S | US - KIDS | UK | CM | EU |
| 3.5 | 5 | 3.5Y | 3 | 22.5 | 35.5 |
| 4 | 5.5 | 4Y | 3.5 | 23 | 36 |
| 4.5 | 6 | 4.5Y | 4 | 23.5 | 36.5 |
| 5 | 6.5 | 5Y | 4.5 | 23.5 | 37.5 |
| 5.5 | 7 | 5.5Y | 5 | 24 | 38 |
| 6 | 7.5 | 6Y | 5.5 | 24 | 38.5 |
| 7 | 8.5 | 7Y | 6 | 25 | 40 |
| 7.5 | 9 | 7.5Y | 6.5 | 25.5 | 40.5 |
| 8 | 9.5 | 8Y | 7 | 26 | 41 |
| 8.5 | 10 | 8.5Y | 7.5 | 26.5 | 42 |
| 9 | 10.5 | 9Y | 8 | 27 | 42.5 |
| 9.5 | 11 | 9.5Y | 8.5 | 27.5 | 43 |
| 10 | 11.5 | 10Y | 9 | 28 | 44 |
| 10.5 | 12 | 10.5Y | 9.5 | 28.5 | 44.5 |
| 11 | 12.5 | 10 | 29 | 45 | |
| 11.5 | 13 | 10.5 | 29.5 | 45.5 | |
| 12 | 13.5 | 11 | 46 | ||
| 12.5 | 14 | 11.5 | 30.5 | 47 | |
| 13 | 14 | 11.5 | 30.5 | 47 | |
| 13.5 | 15 | 12.5 | 31.5 | 48 | |
| 14 | 15.5 | 13 | 32 | 48.5 | |
| 14.5 | 16 | 13.5 | 32.5 | 49 | |
| 15 | 16.5 | 14 | 33 | 49.5 | |
| 15.5 | 17 | 14.5 | 33.5 | 50 | |
| 16 | 17.5 | 15 | 34 | 50.5 | |
| 16.5 | 18 | 15.5 | 34.5 | 51 | |
| 17 | 18.5 | 16 | 35 | 51.5 | |
| 17.5 | 19 | 16.5 | 35.5 | 52 | |
| 18 | 19.5 | 17 | 36 | 52.5 | |
| 18.5 | 20 | 17.5 | 36.5 | 53 | |
| 19 | 20.5 | 18 | 37 | 53.5 | |
| 19.5 | 21 | 18.5 | 37.5 | 54 | |
| 20 | 21.5 | 19 | 38 | 54.5 | |
| 20.5 | 22 | 19.5 | 38.5 | 55 | |
| 21 | 22.5 | 20 | 39 | 55.5 | |
| 21.5 | 23 | 20.5 | 39.5 | 56 | |
| 22 | 23.5 | 21 | 40 | 56.5 | |
| 11 | 12.5 | 10 | 29 | 45 |
MEN'S APPAREL
The measurements on the size chart are body measurements.
FIT TIPS
If you're on the borderline between two sizes, order the smaller size for a tighter fit or the larger size for a looser fit.
HOW TO MEASURE
BUST: Measure around the fullest part of your bust, keeping the measuring tape horizontal.
WAIST: Measure around the narrowest part (typically where your body bends side to side), keeping the tape horizontal.
HIPS: Measure around the fullest part of your hips, keeping the tape horizontal.
MEN'S TOPS
| SIZE | CHEST(IN) | WAIST(IN) | HIP(IN) | HEIGHT(IN) |
| XS | 35.2-35 | 26.29 | 32.5-35 | 5'7"-6'0" |
| XS | 35-37.5 | 29-32 | 35-37.5 | 5'7"-6'0" |
| M | 37.5,41 | 32-35 | 37.5-41 | 5'7"-6'0" |
| L | 41-44 | 35-38 | 41-44 | 5'7"-6'0" |
| XL | 44-48.5 | 38-43 | 44-47 | 5'7" |
| 2XL | 48.5-53.5 | 43-47.5 | 47-50.5 | 5'7"-6'0" |
| 3XL | 53.5-58 | 47.5-52.5 | 50.5-53.5 | 5'7"-6'0" |
| 4XL | 58-63 | 52.5-57 | 53.5-58.5 | 5'7"-6'0" |
MEN'S BOTTOMS
| SIZE | WAIST(IN) | HIP(IN) | LEG LENGTH(IN) | HEIGHT(IN) |
| XS | <29 | <35 | <32.25 | 5'7"-6'0" |
| S | 29-32 | 35-37.5 | 32.25 | 5'7"-6'0" |
| M | 32-35 | 37.5-41 | 32.5 | 5'7"-6'0" |
| L | 35-38 | 41-44 | 32.75 | 5'7"-6'0" |
| XL | 38-43 | 44-47 | 33 | 5'7" |
| 2XL | 43-47.5 | 47-50.5 | 33.25 | 5'7"-6'0" |
| 3XL | 47.5-52.5 | 50.5-53.5 | 33.5 | 5'7"-6'0" |
| 4XL | 52.5 | 53.5-58.5 | 33.75 | 5'7"-6'0" |
WOMEN'S APPAREL
The measurements on the size chart are body measurements.
FIT TIPS
If you're on the borderline between two sizes, order the smaller size for a tighter fit or the larger size for a looser fit.
HOW TO MEASURE
BUST: Measure around the fullest part of your bust, keeping the measuring tape horizontal.
WAIST: Measure around the narrowest part (typically where your body bends side to side), keeping the tape horizontal.
HIPS: Measure around the fullest part of your hips, keeping the tape horizontal.
WOMEN'S TOPS
| SIZE | BUST(IN) | WAIST(IN) | HIP(IN) |
| XXS | 27.5-29.5 | 21.5-23.5 | 30.5-33 |
| XS | 29.5-32.5 | 23.5-26 | 33-35.5 |
| S | 32.5-35.5 | 26-29 | 35.5-38.5 |
| M | 35.5-38 | 29-31.5 | 38.5-41 |
| L | 38-41 | 31.5-34.5 | 41-44 |
| XL | 41-44.5 | 34.5-38.5 | 44-47 |
| 2XL | 44.5-48.5 | 38.5-42.5 | 47-50 |
| 1X | 45-49 | 41-45 | 46-50 |
| 2X | 49-53 | 45-49 | 50-54 |
| 3X | 53-57 | 49-53 | 54-58 |
WOMEN'S BOTTOMS
| SIZE | WAIST(IN) | HIP(IN) | HEIGHT |
| XXS | 21.5-23.5 | 30.5-33 | 5'4"-5'8" |
| XS | 23.5-26 | 33-35.5 | 5'4"-5'8" |
| S | 26-29 | 35.5-38.5 | 5'4"-5'8" |
| M | 29-31.5 | 38.5-41 | 5'4"-5'8" |
| L | 31.5-34-5 | 41-44 | 5'4"-5'8" |
| XL | 34.5-38.5 | 44-47 | 5'4"-5'8" |
| 2XL | 38.5-42.5 | 47-50 | 5'4"-5'8" |
| 1XL | 41-45 | 46-50 | 5'4"-5'8" |
| 2X | 45-49 | 50-54 | 5'4"-5'8" |
| 3X | 49-53 | 54-58 | 5'4"-5'8" |
SPORTS BRAS
| BAND/CUP SIZE | ALPHA SIZE |
ALPHA/CUP SIZE
|
| 30A-30C | XS | XS(AC) |
| 30D-30E | XS | |
| 32A-32B | XS | XS(A-C) |
| 32C | S | S(A-C) |
| 32D-32E | S | S(D-E) |
| 34A-34C | S | S(A-C) |
| 34D-34E | M | M(D-E) |
| 36A-36C | M | M(D-E) |
| 36D-36E | L | L(D-E) |
| 38A-38C | L | L(A-C) |
| 38D-38E | XL | XL(D-E) |
| 40A-40C | XL | XL(A-C) |
| 40D-40E | 2XL | XL(D-E) |
| 42A-42C | 1X | |
| 42D-42E | 2X | |
| 44A-44C | 2X | |
| 44D-44E | 3X |
KIDS APPAREL
The measurements on the size chart are body measurements.
FIT TIPS
If you're on the borderline between two sizes, order the smaller size for a tighter fit or the larger size for a looser fit.
HOW TO MEASURE
BUST: Measure around the fullest part of your bust, keeping the measuring tape horizontal.
WAIST: Measure around the narrowest part (typically where your body bends side to side), keeping the tape horizontal.
HIPS: Measure around the fullest part of your hips, keeping the tape horizontal.
| SIZE | NUMERIC SIZE | AGE | HEIGHT(IN) | CHEST(IN) | WAIST(IN) |
| XS | 6-7 | 7-8 | 48-50 | 25.5-26 | 23.5-24 |
| S | 8-9 | 8-10 | 50-54 | 26-27 | 24-25.5 |
| S+ | 8-9 Plus | 8-10 | 50-54 | 28-30 | 26-28 |
| M | 10-12 | 10-12 | 54-58 | 27-29.5 | 25.5-27 |
| M+ | 10-12 Plus | 10-12 | 54-58 | 30-33 | 28-30 |
| L | 14-16 | 12-13 | 58-62 | 29.5-32 | 27-28.5 |
| L+ | 14-46 Plus | 12-13 | 58-62 | 33-36 | 30-32 |
| XL | 18-20 | 13-15 | 62-67 | 32-35 | 28-5-29.5 |
| XL+ | 18-20 Plus | 13-15 | 62-67 | 36-38.5 | 32-34.5 |
| SIZE | NUMERIC SIZE | AGE | HEIGHT(IN) | CHEST(IN) | WAIST(IN) |
| XS | 6-7 | 7-8 | 48-50 | 25.5-27 | 23.5-24 |
| S | 8-9 | 8-10 | 50-54 | 27-29 | 24-25 |
| S+ | 8-9 Plus | 8-10 | 50-54 | 29-32 | 26.5-29.5 |
| M | 10-12 | 10-12 | 54-57 | 29-31 | 25-27 |
| M+ | 10-12 Plus | 10-12 | 54-57.5 | 32-34.5 | 29.5-32 |
| L | 14-16 | 12-13 | 57-61 | 31-33.5 | 27-28 |
| L+ | 14-46 Plus | 12-13 | 57.5-61.5 | 34.5-38 | 32-35 |
| XL | 18-20 | 13-15 | 61-65 | 33.5-36.5 | 28-29.5 |
| XL+ | 18-20 Plus | 13-15 | 61.5-65.5 | 38-41.5 | 35-39 |
LITTLE KIDS' CLOTHING
| SIZE | NUMERIC SIZE | AGE | HEIGHT(IN) | CHEST(IN) | WAIST(IN) |
| XS | 4 | 3-4 | 38.5-41 | 22-23 | 21.5-22 |
| S | 5 | 4-5 | 41-43 | 23-24 | 22-22.5 |
| M | 6 | 5-6 | 43-46 | 24-24.75 | 22.5-23 |
| L | 6X/7 | 6-7 | 46-48 | 24.5-26 | 23-24 |
| XL | 7X | 7-8 | 48-50.5 | 26-27 | 24-25 |
EQUIPMENT
The measurements on the size chart are body measurements.
FIT TIPS
* If you're on the borderline between two sizes, order the smaller size for a tighter fit or the larger size for a looser fit.
* OS = One Size.
HOW TO MEASURE
Measure the circumference of your head using a measuring tape. Wrap it around your head at the point where the hat will sit (about an inch/2.5cm above your eyebrows).
| SIZE | US - MEN'S | US - WOMEN'S | US KIDS | UK | EU |
| XS | 13C-3Y | 31-35 | |||
| S | 4-6 | 3Y-5Y | 2-5 | 34-38 | |
| M | 6-8 | 6-10 | 5Y-7Y | 5-8 | 38-42 |
| L | 8-12 | 10-13 | 8-11 | 42-46 | |
| XL | 12-15 | 11-14.5 | 46-50 |
HATS AND HEADWEAR
| Nike Hat Size | Head Size | Alpha Size | Swosh Flex | Unisex | Women's | Dual Size Unisex | Women's |
| 6 1/2 | 20 1/2 | XS | S | ||||
| 6 5/8 | 20 7/8 | XS/S | XS | S OS | S/M | ||
| 6 3/4 | 21 1/8 | XS | XS/S | XS S OS | S OS | S/M | |
| 6 7/8 | 21 1/2 | XS/S S/M | XS S OS | S OS | XS/S | ||
| 7 | 21 7/8 | S | XS/S S/M | XS S OS | S OS | M/L | |
| 7 1/8 | 22 1/4 | S/M M/L OS | XS S OS | S OS | S/M | ||
| 7 1/4 | 22 5/8 | M | S/M M/L OS | S OS | OS L | L/XL | |
| 7 3/8 | 23 | M/L L/XL OS | S OS XL | OS L | M/L | ||
| 7 1/2 | 23 1/2 | L | M/L L/XL OS | OS XL | L | ||
| 7 5/8 | 23 7/8 | L/XL XL/XXL | OS XL | L | |||
| 7 3/4 | 24 1/4 | XL | L/XL XL/XXL | XL | L | ||
| 7 7/8 | 24 5/8 | XL | L | XL/XXL | |||
| 8 | 25+ | XL |