
Bont Size Chart - Spin Boot
How to measure your feet
Skate boots are not like your average shoe. For maximum control, your boots need to fit like a second skin. That is why Bont boot sizing is NOT the same as your US shoe size or other skate brand sizing.
Wear the type of socks you'll wear with your boots. Distribute weight evenly before measuring.
STEP 1
On a hard surface, tape a piece of blank paper to the floor. Stand up straight with your foot on the paper. Your heel should be barely touching the wall or not at all. DO NOT push heel into the wall as it will produce incorrect length measurements.
STEP 2
Mark the longest part of your foot (heel-to-toe length) and widest part of your foot on the paper with a pen or pencil. If your heel is away from the wall trace around your whole foot. Make sure your pen is held vertically, not at an angle. Repeat with the other foot, as the right and left foot may be different sizes.
STEP 3
Use a ruler to measure the heel-to-toe length and width measurement for each foot. Take these measurements and input them into the size calculator or compare them to the size chart below.
Which Size Chart?
Use the calculator and chart below to find your correct Bont size for your selected boot model. Enter your measurements in millimeters for the most accurate fit.
Looking for a different boot model?
- Eclipse and Vaypor VII Boots – Size Chart and Calculator (NEW)
- Slipstream Boot - Size Chart and Calculator (NEW)
- Spin Roller Skate Boot - Size Chart and Calculator (NEW)
- Parkstar, Prostar and Quadstar Boots – Size Chart and Calculator
-
Inline and Roller Skate Boots (All Other Models) – Size Chart and Calculator
Size Calculator - MM
Enter your foot length in millimeters and press “ENTER” to get your recommended Bont size. If you’re using a different boot model, refer to the “Which Size Chart” section above to select the correct chart.
Note: The size calculator is a guide only and may not be suitable for all foot shapes.
Left Foot
- Length (mm)
- Bont Size:
Right Foot
- Length (mm)
- Bont Size:
Size Chart - Spin Boot
| FOOT LENGTH (MM) | SIZE | STANDARD WIDTH (MM) | WIDE WIDTH (MM) |
|---|---|---|---|
| 175 - 179 | 180 | 67 - 71 | 71 - 75 |
| 180 - 184 | 185 | 70 - 74 | 74 - 78 |
| 185 - 189 | 190 | 71 - 75 | 75 - 79 |
| 190 - 194 | 195 | 72 - 76 | 76 - 80 |
| 195 - 199 | 200 | 73 - 77 | 77 - 81 |
| 200 - 204 | 205 | 76 - 80 | 80 - 84 |
| 205 - 209 | 210 | 78 - 87 | 82 - 91 |
| 210 - 214 | 215 | 79 - 88 | 83 - 92 |
| 215 - 219 | 220 | 81 - 90 | 85 - 94 |
| 220 - 224 | 225 | 82 - 91 | 86 - 95 |
| 225 - 229 | 230 | 84 - 93 | 88 - 97 |
| 230 - 234 | 235 | 86 - 96 | 90 - 100 |
| 235 - 239 | 240 | 87 - 97 | 91 - 101 |
| 240 - 244 | 245 | 89 - 98 | 93 - 102 |
| 245 - 249 | 250 | 90 - 100 | 94 - 104 |
| 250 - 254 | 255 | 91 - 101 | 95 - 105 |
| 255 - 259 | 260 | 92 - 103 | 96 - 107 |
| 260 - 264 | 265 | 94 - 104 | 98 - 108 |
| 265 - 269 | 270 | 95 - 105 | 99 - 109 |
| 270 - 274 | 275 | 97 - 108 | 101 - 112 |
| 275 - 279 | 280 | 99 - 110 | 103 - 114 |
| 280 - 284 | 285 | 100 - 111 | 104 - 115 |
| 285 - 289 | 290 | 101 - 112 | 105 - 116 |
| 290 - 294 | 295 | 102 - 114 | 106 - 118 |
| 295 - 299 | 300 | 104 - 115 | 108 - 119 |
| 300 - 304 | 305 | 106 - 118 | 110 - 122 |
| 305 - 309 | 310 | 107 - 119 | 111 - 123 |
| 310 - 314 | 315 | 109 - 121 | 113 - 125 |
Brief Introduction
The Spin is a rhythm skate built for skaters who want style, flow, and modern performance in one setup. Designed for rhythm, rink, and jam skating, it blends a classic street look with lightweight race technology normally found in high-end speed skates.
Under the surface, the Spin uses a carbon fiber base and heat-moldable construction to create a skate that feels responsive, comfortable, and easy to control. It is built for long sessions, smooth transitions, and skaters who want a skate that keeps up with their creativity.
Key Product Points
• Carbon fiber base keeps the skate extremely lightweight while adding stiffness and control
• Heat-moldable boot allows a custom fit that adapts to your foot shape
• 6061 aircraft aluminum skate plate for strength, precision, and durability
• Ultraglide wheels with high rebound urethane for smooth roll, grip, and long life
• Comfortable closed-cell foam interior designed for hours of rhythm or jam skating
Product Description
A Rhythm Skate Built for Flow
Rhythm skating is all about expression. The way you glide, step, spin, and connect movements together defines your style on the floor. The Spin skate was designed around that idea.
Instead of copying traditional rhythm boots that focus on appearance alone, this skate brings modern performance technology into a street-inspired design. It keeps the clean rhythm skating aesthetic while delivering a lighter, more responsive ride.
The result is a skate that feels fast, controlled, and comfortable whether you are cruising the floor, working on footwork, or skating for hours with friends.

Lightweight Performance You Can Feel
The biggest difference you notice when you pick up the Spin is the weight. Most rhythm skates rely on thick materials and heavy construction. The Spin takes a different approach.
Inside the boot is a carbon fiber base, a material normally reserved for inline speed skates and racing equipment. Carbon fiber is incredibly stiff and lightweight, which means less energy is lost when you push, step, or transition between movements.
For rhythm skating, this translates into:
• Faster response when shifting weight
• Better control during spins and slides
• Less fatigue during long sessions
• A skate that simply feels easier to move
This technology helps the Spin stand out from traditional rhythm boots while keeping the street style that skaters want.
Heat Moldable Fit
Every skater's foot is different, which is why the Spin uses heat-moldable construction. This allows the boot to adapt to the shape of your foot for a more personalized fit.
Once molded, the skate wraps naturally around your foot, improving comfort and stability while reducing pressure points.
A better fit also improves control. When the boot moves with your foot instead of against it, every movement becomes smoother and more precise.

Designed for Long Sessions
Rhythm skating sessions can last for hours, so comfort matters just as much as performance.
The Spin uses high-quality closed-cell foam padding throughout the boot. This type of foam offers several advantages over traditional materials:
• It maintains its shape over time
• It does not absorb sweat or water
• It provides consistent cushioning
• It keeps the boot lightweight
Because the foam does not retain moisture, the skate stays comfortable even during long sessions at the rink or outdoor street spots.
The overall fit has been designed so skaters can ride for hours without feeling weighed down or restricted.
Street Style Meets Modern Technology
The Spin keeps the look that rhythm skaters love. It stays true to the street aesthetic while quietly integrating advanced skate technology underneath.
From the outside, it feels familiar and stylish. Inside, it performs like modern skate gear.
This balance makes the Spin perfect for skaters who want:
• A skate that looks right in rhythm sessions
• Lightweight performance normally found in speed skating gear
• Comfort that lasts through long skate nights
• Reliable equipment that can handle daily use

Built for Rhythm, Jam, and Street Skating
The Spin was created for skaters who move between different styles. It works perfectly for:
• Rhythm skating
• Jam skating
• Dance skating
• Session skating
• Casual cruising sessions
Because it combines comfort, lightweight construction, and smooth rolling components, it adapts easily to different skating styles.
Whether you are practicing footwork, flowing around the rink, or just skating with friends, the Spin keeps things smooth.
Skate Longer. Move Freer.
The Spin brings modern skate technology into rhythm skating without losing the street aesthetic that makes the culture unique.
It is lightweight, comfortable, responsive, and built for skaters who want to keep moving.
Step into the Spin and experience a rhythm skate designed for long sessions, smooth flow, and effortless control.
Technical Specifications
Boot
• Carbon fiber base construction
• Heat moldable boot
• Closed-cell foam padding that does not retain water
• 30mm internal heel
• Lightweight rhythm skate design
• Comfortable fit for extended skating sessions
Use
• Rhythm skating
• Jam skating
• Street skating
• General recreational skating
Frequently Asked Questions
Is the Spin skate suitable for beginners?
Yes. While the Spin uses advanced materials like carbon fiber, it is still very comfortable and easy to skate in. Beginners will appreciate the lightweight feel and smooth rolling setup, while experienced skaters will enjoy the responsiveness.
Can the Spin skate be heat-molded at home?
Yes. The heat-moldable construction allows the boot to adapt to your foot shape. Most skaters can heat mold the skate using a standard oven following the recommended instructions.
Are the Ultraglide wheels good for indoor rhythm skating?
Absolutely. Ultraglide wheels are known for their high rebound urethane, which provides excellent roll and grip. They are a great choice for rhythm skating, jam skating, and general rink use.
Heat Moldable Fit
Bont boots are the most heat-moldable boots on the market. Our proprietary resin is extremely stiff for performance, yet becomes pliable at low temperatures, allowing the boot to be shaped safely and easily.
Unlike many skates that can only be molded in small areas, Bont boots are moldable across the entire base. This gives skaters the ability to fine-tune the fit of the whole boot for a truly customized feel and a more anatomically accurate shape.
For instructions on how to heat mold your inline, carbon or fiberglass roller skate boots, visit our Heat Molding page.
Buy With Confidence
You can always buy Bont Skates with confidence. Skaters have trusted Bont since 1975, and we are the world’s largest manufacturer of inline speed skates, short track speed skates and custom boots, as well as one of the leading manufacturers of roller derby skates.
We take pride in looking after our customers and producing gear to the highest standards. Every boot goes through 16 independent stages of quality control before it leaves our factory.
Our inline wheels, roller skate wheels and frames are tested for strength and fatigue using advanced computer-aided stress testing. Bont bearings are developed in partnership with some of the best specialty bearing manufacturers in the world.
All Bont products also go through rigorous team testing before they reach the market, with feedback from some of the world’s top skaters.
When you choose Bont, you’re getting skates that are trusted, tested and built to perform.
Liner Materials
Bont boots use a range of premium liner materials chosen from hundreds of tested options. All of our liners are lightweight, durable and designed to resist sweat breakdown and odor.
Available Liner Materials
• Microfiber – Light, strong, fights odor and resists sweat damage.
• Suede-L – Soft, durable and vegan friendly, with strong odor and sweat resistance.
• Durolite – Extremely durable and lightweight, able to handle minor crashes without scratching. Vegan friendly.
All liner materials used in Bont boots meet our standards for comfort, longevity and performance.
Footbed Design

Boot Last Design
A last is the foot-shaped mold that a boot is built around. The accuracy of the last determines how well a skate fits.
Bont has been refining our lasts since 1975, and we continue to improve them to ensure our boots fit comfortably straight out of the box. Unlike many brands that rely on generic lasts, we develop and update our own designs to achieve a precise, performance-focused fit.

Lightweight Design
Bont boots are built to be lighter and stronger than traditional skate boots. We achieve this by hand-building each boot from the inside out, laying carbon or fiberglass directly around the last. This method takes significantly more time than conventional construction, but it creates a lighter, more responsive boot without sacrificing strength.
Manufacturing Process
Bont is one of the few skate brands that still handcrafts boots using an inside-out manufacturing method. This approach is far more skill-intensive and time-consuming than mainstream production, but it allows us to create boots with the performance, strength and responsiveness skaters expect. While it increases production costs, it delivers a lighter and more precise final product.
We continually refine our processes to maintain the highest quality. For example, traditional vacuum curing for carbon has been replaced with pressure wrapping, which applies four atmospheres of pressure instead of one. This produces a more consistent and durable carbon layup.
Inze Bont’s engineering innovations have helped optimize our production line so we can build handmade monocoque boots efficiently without compromising craftsmanship.
Our manufacturing methods reflect our performance philosophy: lighter, stronger and faster.
For more detail on individual components of our construction, explore the technical dropdowns on this page, including Last Design, Footbed, Liner, Anti-Stretch, Carbon Fiber, Upper and more.
Anatomical Heel Cup
The anatomical heel cup in Bont quad roller skate boots is designed to improve stability and help you generate more power with each push. It supports the heel naturally, without relying on tight straps or laces, which means better comfort and circulation.
The heel cup is also fully heat moldable, allowing you to fine-tune the fit for your foot.

Anatomical Forefoot Shape
Many traditional quad roller skate boots use a narrow, dress-shoe style shape. While it may look sleek, it can squeeze the toes and metatarsals too tightly. This pressure can irritate the nerves between the bones, which often leads to the familiar “hot foot” sensation.
Bont’s anatomical forefoot shape is designed to let the foot sit and function in a more natural position. This reduces compression and improves comfort and efficiency. Combined with our heat moldable construction, you can fine-tune the boot to match your individual foot shape.

