SKATE
Official Fit Manual
Flying Eagle Skate
Size Guide
Find Your Perfect Fit & Unlock Ultimate Performance
Welcome to the official FlyingEagleSkate Size Guide. Choosing the right size is the most critical step to unlocking ultimate performance, perfect ankle support, and a blister-free skating experience. Because high-performance adult roller blades and kids' skates feature structural hard shells and supportive liners, relying solely on your everyday street shoe size can lead to an incorrect fit. This comprehensive guide provides everything you need to know about inline skate sizing, instructions on how to measure your feet accurately, and specific size charts mapped directly to our product lineups.
How to Choose Your Size And Measure Your Feet?
To take the guesswork out of inline skate sizing, you should always select your skates based on your actual foot length in centimeters (Mondo Point / CM). Follow these five simple steps to get an accurate measurement at home.
How to Measure Your Feet
5 Simple Steps to Find Your Perfect CM / Mondo Point
1
Setup
Place a blank sheet of paper on a hard floor, flush against a wall.
2
Position
Stand on the paper with your heel touching the wall. Wear skating socks.
3
Mark
Keep weight centered and strictly mark the absolute tip of your longest toe.
4
Measure
Measure the exact distance from the heel edge to your mark in CM.
5
Compare
Measure both feet and use the larger measurement for our charts.
💡 Sizing Tip: Flying Eagle skates are engineered to fit true to size for a snug, high-performance feel. If you have notably wide feet or a high instep, we highly recommend sizing up by one full EU size to prevent side-pressure pinching. If your CM measurement falls exactly between two sizes, always round up.
1. F5S+ ECLIPSE / F6 FALCON PRO / F7 OPTIMUM / Optimum TRI / ECLIPSE TRI 110
(True to size, premium snug performance fit)
| EU Size |
US Men |
UK Size |
MONDO (CM) |
| 36 |
4 |
2.5 |
22 |
| 37 |
5 |
3.5 |
23 |
| 38 |
6 |
4 |
23.5 |
| 39 |
7 |
5 |
24 |
| 40 |
7.5 |
6 |
25 |
| 41 |
8 |
6.5 |
25.5 |
| 42 |
9 |
7 |
26 |
| 43 |
9.5 |
8 |
27 |
| 44 |
10 |
8.5 |
27.5 |
| 45 |
11 |
9 |
28 |
| 46 |
12 |
10 |
29 |
2. FBS / AVIAN
(Dual-size shells offering flexible performance)
| EU Size |
US Men |
UK Size |
MONDO (CM) |
| 35-36 |
2.5-3 |
2-2.5 |
21.5-22 |
| 37-38 |
4-5 |
3.5-4 |
23-23.5 |
| 39-40 |
6-7 |
5-6 |
24-25 |
| 41-42 |
7.5-8 |
6.5-7 |
25.5-26 |
| 43-44 |
9-9.5 |
8-8.5 |
27-27.5 |
| 45-46 |
10-11 |
9-10 |
28-29 |
3. F4+ RAVEN
(Comfort-fit profile with a slightly more accommodating toe box)
| EU Size |
US Men |
UK Size |
MONDO (CM) |
| 36 |
3 |
2.5 |
22 |
| 37 |
3.5 |
3 |
22.5 |
| 38 |
4 |
3.5 |
23 |
| 39 |
6 |
5 |
24 |
| 40 |
6.5 |
6 |
24.5 |
| 41 |
7.5 |
6.5 |
25.5 |
| 42 |
8.5 |
7.5 |
26.5 |
| 43 |
9 |
8 |
27 |
| 44 |
10 |
9 |
28 |
| 45 |
11 |
10 |
29 |
| 46 |
11.5 |
10.5 |
29.5 |
4. X-SERIES: X5F / X5D / X5T SPECTRE & X6 / X7F / X7T / X7D REAVER
| EU Size |
US Men |
UK Size |
MONDO (CM) |
| 36 |
4 |
3.5 |
23 |
| 37 |
5 |
4 |
23.5 |
| 38 |
6 |
5 |
24 |
| 39 |
7 |
6 |
25 |
| 40 |
7.5 |
6.5 |
25.5 |
| 41 |
8 |
7 |
26 |
| 42 |
9 |
8 |
27 |
| 43 |
9.5 |
8.5 |
27.5 |
| 44 |
10 |
9 |
28 |
| 45 |
11 |
10 |
29 |
| 46 |
11.5 |
10.5 |
29.5 |
5. X1 SHRIKE LITE / X3 SHRIKE
| EU Size |
US Men |
UK Size |
MONDO (CM) |
| 35-36 |
3-4 |
2.5-3.5 |
22-23 |
| 37-38 |
5-6 |
4-5 |
23.5-24 |
| 39-40 |
7-7.5 |
6-6.5 |
25-25.5 |
| 41-42 |
8-9 |
7-8 |
26-27 |
| 43-44 |
9.5-10 |
8.5-9 |
27.5-28 |
| 45-46 |
11-11.5 |
10-10.5 |
29-29.5 |
6. ENKIDU
| EU Size |
US Men |
UK Size |
MONDO (CM) |
| 37-38 |
4-5 |
3.5-4 |
23-23.5 |
| 39-40 |
6-7 |
5-6 |
24-25 |
| 41-42 |
7.5-8 |
6.5-7 |
25.5-26 |
| 43-44 |
9-9.5 |
8-8.5 |
27-27.5 |
| 45-46 |
10-11 |
9-10 |
28-29 |
7. RAPTOR
| EU Size |
US Men |
UK Size |
MONDO (CM) |
| 35 |
4 |
3 |
22 |
| 36 |
5 |
4 |
23 |
| 37 |
5.5 |
4.5 |
23.5 |
| 38 |
6 |
5 |
24 |
| 39 |
7 |
6 |
25 |
| 40 |
7.5 |
6.5 |
25.5 |
| 41 |
8 |
7 |
26 |
| 42 |
9 |
8 |
27 |
| 43 |
9.5 |
8.5 |
27.5 |
| 44 |
10 |
9 |
28 |
8. B6 HERO
| EU Size |
US Men |
UK Size |
MONDO (CM) |
| 35-36 |
3-3.5 |
2.5-3 |
22-22.5 |
| 37-38 |
4-5 |
3.5-4 |
23-23.5 |
| 39-40 |
6-7 |
5-6 |
24-25 |
| 41-42 |
8-8.5 |
7-7.5 |
26-26.5 |
| 43-44 |
9-10 |
8-9 |
27-28 |
| 45-46 |
11-11.5 |
10-10.5 |
29-29.5 |
👩 Note for Female Skaters: Looking for a roller blades women size guide or roller blades female size guide? Because our hard-shell skates use high-precision unisex EU sizing, simply convert your standard US Women's size by dropping roughly 1 to 1.5 sizes to match the US Men's column, or rely completely on your CM foot measurement for the absolute best fit.
Kids Skates Size Charts
Our adult roller blades size guide wouldn't be complete without looking at growing feet. Flying Eagle kids' skates feature multi-size growth adjustments, extending through simple push-button mechanisms.
1. S3 COSMO / S8 SPROUT / L8 LUMAFLY / S9 DYNAMO / K8S
| EU Size Block |
US Kids Size |
UK Kids Size |
MONDO (CM) |
| 27-31# |
11-11.5 |
10.5-13.5 |
17-20 |
| 32-36# |
-5 |
1-4 |
20.5-23.5 |
| 37-41# |
6-9 |
5-8 |
24-27 |
2. S7 NIMBUS / S7 SPEED
| EU Size Block |
US Kids Size |
UK Kids Size |
MONDO (CM) |
| 27-31# |
11-11.5 |
10.5-13.5 |
17-20 |
| 32-36# |
-5 |
1-4 |
20.5-23.5 |
| 37-41# |
6-9 |
5-8 |
24-27 |
| 42-46# |
9.5-12.5 |
8.5-11.5 |
27.5-30.5 |
3. S5+ PRO BUZZ / S6+ PRO SONOS / L6 LUMOS / NT2 NATCH / ND NADIA
| EU Size Block |
US Kids Size |
UK Kids Size |
MONDO (CM) |
| 28-32# |
11-11.5 |
10.5-13.5 |
17-20 |
| 33-37# |
-5 |
1-4 |
20.5-23.5 |
| 38-42# |
6-9 |
5-8 |
24-27 |
4. B3S
| EU Size Block |
US Kids Size |
UK Kids Size |
MONDO (CM) |
| 36-37 |
4-5 |
3.5-4 |
23-23.5 |
| 38-39 |
6-7 |
5-6 |
24-25 |
| 40-41 |
7.5-8.5 |
6.5-7.5 |
25.5-26.5 |
| 42-43 |
9-10 |
8-9 |
27-28 |
| 44-45 |
11-11.5 |
10-10.5 |
29-29.5 |
Carbon Fiber & Racing Skates Size Charts
Our high-end carbon fiber lineup offers single-size distributions designed for elite slalom, competitive racing, and custom performance needs.
1. DRIFT 1 / DRIFT 2 / VELOCE II / PHANTOM / LEADER
| EU Size |
US Size |
UK Size |
CM |
| 29 |
12J |
11.5J |
18 |
| 30 |
13J |
12.5J |
18.5 |
| 31 |
13.5J |
13J |
19.5 |
| 32 |
1 |
13.5J |
20 |
| 33 |
2 |
1.5 |
21 |
| 34 |
3 |
2 |
21.5 |
| 35 |
4 |
3 |
22 |
| 36 |
5 |
4 |
23 |
| 37 |
5.5 |
4.5 |
23.5 |
| 38 |
6 |
5 |
24 |
| 39 |
7 |
6 |
25 |
| 40 |
7.5 |
6.5 |
25.5 |
| 41 |
8 |
7 |
26 |
| 42 |
9 |
8 |
27 |
| 43 |
9.5 |
8.5 |
27.5 |
| 44 |
10 |
9 |
28 |
| 45 |
11 |
10 |
29 |
| 46 |
11.5 |
10.5 |
29.5 |
| 47 |
12 |
11 |
30 |
| 48 |
13 |
12 |
31 |
| 49 |
14 |
13 |
31.5 |
2. DRIFT-JR / DRIFT-JRS
| EU Size |
US Size |
UK Size |
CM |
| 29 |
12J |
11.5J |
18 |
| 30 |
13J |
12.5J |
18.5 |
| 31 |
13.5J |
13J |
19.5 |
| 32 |
1 |
13.5J |
20 |
| 33 |
2 |
1.5 |
21 |
| 34 |
3 |
2 |
21.5 |
| 35 |
4 |
3 |
22 |
| 36 |
5 |
4 |
23 |
| 37 |
5.5 |
4.5 |
23.5 |
Conclusion: Finding your perfect fit is the absolute foundation of your skating progression. When your skates fit properly, you ensure optimal energy transfer, reliable ankle safety, and maximum control over your edges.
Measure your feet carefully in centimeters, locate your favorite model, and select your sizing confidently. If you have any remaining questions about how your preferred model fits, feel free to reach out to our support team at Flying Eagle Skate. Grab your correct size, secure your straps, and enjoy your time on wheels!